CVE-2016-0762
published 2017-08-10CVE-2016-0762: The Realm implementations in Apache Tomcat versions 9.0.0.M1 to 9.0.0.M9, 8.5.0 to 8.5.4, 8.0.0.RC1 to 8.0.36, 7.0.0 to 7.0.70 and 6.0.0 to 6.0.45 did not…
PriorityP337medium5.9CVSS 3.1
AVNACHPRNUINSUCHINAN
EPSS
7.99%
94.1th percentile
The Realm implementations in Apache Tomcat versions 9.0.0.M1 to 9.0.0.M9, 8.5.0 to 8.5.4, 8.0.0.RC1 to 8.0.36, 7.0.0 to 7.0.70 and 6.0.0 to 6.0.45 did not process the supplied password if the supplied user name did not exist. This made a timing attack possible to determine valid user names. Note that the default configuration includes the LockOutRealm which makes exploitation of this vulnerability harder.
Affected
28 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apache | tomcat | — | — |
| apache | tomcat | — | — |
| apache | tomcat | 6.0.0 – 6.0.45 | — |
| apache | tomcat | 7.0.0 – 7.0.70 | — |
| apache | tomcat | 8.0 – 8.0.36 | — |
| apache | tomcat | 8.5.0 – 8.5.4 | — |
| apache_software_foundation | apache_tomcat | — | — |
| apache_software_foundation | apache_tomcat | — | — |
| apache_software_foundation | apache_tomcat | — | — |
| apache_software_foundation | apache_tomcat | — | — |
| apache_software_foundation | apache_tomcat | — | — |
| canonical | ubuntu_linux | — | — |
| debian | debian_linux | — | — |
| oracle | communications_diameter_signaling_router | 8.0.0 – 8.5.0 | — |
| oracle | tekelec_platform_distribution | 7.4.0 – 7.7.1 | — |
| redhat | enterprise_linux_desktop | — | — |
| redhat | enterprise_linux_eus | — | — |
| redhat | enterprise_linux_eus | — | — |
| redhat | enterprise_linux_eus | — | — |
| redhat | enterprise_linux_eus | — | — |
| redhat | enterprise_linux_server | — | — |
| redhat | enterprise_linux_server_aus | — | — |
| redhat | enterprise_linux_server_aus | — | — |
| redhat | enterprise_linux_server_aus | — | — |
| redhat | enterprise_linux_server_tus | — | — |
CVSS provenance
nvdv3.15.9MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
nvdv2.04.3MEDIUMAV:N/AC:M/Au:N/C:P/I:N/A:N
osv5.9MEDIUM
vendor_apache5.9MEDIUM
vendor_redhat5.9MEDIUM
vendor_ubuntu5.9MEDIUM
vendor_oracle4.3MEDIUM
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Oracle
Oracle Oracle Communications Risk Matrix: Provisioning (Apache Tomcat) — CVE-2016-0762
vendor_oracle·2021-07-15·CVSS 4.3
CVE-2016-0762 [MEDIUM] Oracle Oracle Communications Risk Matrix: Provisioning (Apache Tomcat) — CVE-2016-0762
Oracle Oracle Communications Risk Matrix: Provisioning (Apache Tomcat) vulnerability
CVE: CVE-2016-0762
CVSS: 4.3
Protocol: HTTP
Remote exploit: Yes
Affected versions: Network
Advisory: cpujul2021 (JUL 2021)
Ubuntu
Tomcat vulnerabilities
vendor_ubuntu·2020-09-30·CVSS 5.9
CVE-2016-6797 [MEDIUM] Tomcat vulnerabilities
Title: Tomcat vulnerabilities
Summary: Several security issues were fixed in Tomcat.
It was discovered that the Tomcat realm implementations incorrectly handled
passwords when a username didn't exist. A remote attacker could possibly
use this issue to enumerate usernames. (CVE-2016-0762)
Alvaro Munoz and Alexander Mirosh discovered that Tomcat incorrectly
limited use of a certain utility method. A malicious application could
possibly use this to bypass Security Manager restrictions. (CVE-2016-5018)
It was discovered that Tomcat incorrectly controlled reading system
properties. A malicious application could possibly use this to bypass
Security Manager restrictions. (CVE-2016-6794)
It was discovered that Tomcat incorrectly controlled certain configuration
parameters. A malicious applica
Ubuntu
Tomcat regression
vendor_ubuntu·2017-02-02·CVSS 5.9
[MEDIUM] Tomcat regression
Title: Tomcat regression
Summary: USN-3177-1 introduced a regression in Tomcat.
USN-3177-1 fixed vulnerabilities in Tomcat. The update introduced a
regression in environments where Tomcat is started with a security manager.
This update fixes the problem.
We apologize for the inconvenience.
Original advisory details:
It was discovered that the Tomcat realm implementations incorrectly handled
passwords when a username didn't exist. A remote attacker could possibly
use this issue to enumerate usernames. This issue only applied to Ubuntu
12.04 LTS, Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2016-0762)
Alvaro Munoz and Alexander Mirosh discovered that Tomcat incorrectly
limited use of a certain utility method. A malicious application could
possibly use this to bypass Security Manager res
Ubuntu
Tomcat vulnerabilities
vendor_ubuntu·2017-01-23·CVSS 5.9
CVE-2016-0762 [MEDIUM] Tomcat vulnerabilities
Title: Tomcat vulnerabilities
Summary: Several security issues were fixed in Tomcat.
It was discovered that the Tomcat realm implementations incorrectly handled
passwords when a username didn't exist. A remote attacker could possibly
use this issue to enumerate usernames. This issue only applied to Ubuntu
12.04 LTS, Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2016-0762)
Alvaro Munoz and Alexander Mirosh discovered that Tomcat incorrectly
limited use of a certain utility method. A malicious application could
possibly use this to bypass Security Manager restrictions. This issue only
applied to Ubuntu 12.04 LTS, Ubuntu 14.04 LTS and Ubuntu 16.04 LTS.
(CVE-2016-5018)
It was discovered that Tomcat did not protect applications from untrusted
data in the HTTP_PROXY environment variable. A rem
Red Hat
tomcat: timing attack in Realm implementation
vendor_redhat·2016-10-27·CVSS 5.9
CVE-2016-0762 [MEDIUM] tomcat: timing attack in Realm implementation
tomcat: timing attack in Realm implementation
The Realm implementations in Apache Tomcat versions 9.0.0.M1 to 9.0.0.M9, 8.5.0 to 8.5.4, 8.0.0.RC1 to 8.0.36, 7.0.0 to 7.0.70 and 6.0.0 to 6.0.45 did not process the supplied password if the supplied user name did not exist. This made a timing attack possible to determine valid user names. Note that the default configuration includes the LockOutRealm which makes exploitation of this vulnerability harder.
The Realm implementations did not process the supplied password if the supplied user name did not exist. This made a timing attack possible to determine valid user names. Note that the default configuration includes the LockOutRealm which makes exploitation of this vulnerability harder.
Package: tomcat5 (Red Hat Enterprise Linux 5) - Will n
Apache
Apache tomcat: CVE-2016-0762
vendor_apache·CVSS 5.9
CVE-2016-0762 [MEDIUM] Apache tomcat: CVE-2016-0762
Apache tomcat: CVE-2016-0762
The Realm implementations did not process the supplied password if the supplied user name did not exist. This made a timing attack possible to determine valid user names. Note that the default configuration includes the LockOutRealm which makes exploitation of this vulnerability harder. This was fixed in revision 1758500 for 8.5.x and revision 1758501 for 8.0.x. This issue was identified by the Apache Tomcat Security Team on 1 January 2016 and made public on 27 October 2016. Affects: 8.5.0 to 8.5.4, 8.0.0.RC1 to 8.0.36 13 June 2016 Fixed in Apache Tomcat 8.5.3 and 8.0.36 Moderate: Denial of Service
OSV
Observable Discrepancy in Apache Tomcat
osv·2022-05-13
CVE-2016-0762 [MEDIUM] Observable Discrepancy in Apache Tomcat
Observable Discrepancy in Apache Tomcat
The Realm implementations in Apache Tomcat versions 9.0.0.M1 to 9.0.0.M9, 8.5.0 to 8.5.4, 8.0.0.RC1 to 8.0.36, 7.0.0 to 7.0.70 and 6.0.0 to 6.0.45 did not process the supplied password if the supplied user name did not exist. This made a timing attack possible to determine valid user names. Note that the default configuration includes the LockOutRealm which makes exploitation of this vulnerability harder.
GHSA
Observable Discrepancy in Apache Tomcat
ghsa·2022-05-13
CVE-2016-0762 [MEDIUM] CWE-203 Observable Discrepancy in Apache Tomcat
Observable Discrepancy in Apache Tomcat
The Realm implementations in Apache Tomcat versions 9.0.0.M1 to 9.0.0.M9, 8.5.0 to 8.5.4, 8.0.0.RC1 to 8.0.36, 7.0.0 to 7.0.70 and 6.0.0 to 6.0.45 did not process the supplied password if the supplied user name did not exist. This made a timing attack possible to determine valid user names. Note that the default configuration includes the LockOutRealm which makes exploitation of this vulnerability harder.
OSV
tomcat6 vulnerabilities
osv·2020-09-30·CVSS 5.9
CVE-2016-0762 [MEDIUM] tomcat6 vulnerabilities
tomcat6 vulnerabilities
It was discovered that the Tomcat realm implementations incorrectly handled
passwords when a username didn't exist. A remote attacker could possibly
use this issue to enumerate usernames. (CVE-2016-0762)
Alvaro Munoz and Alexander Mirosh discovered that Tomcat incorrectly
limited use of a certain utility method. A malicious application could
possibly use this to bypass Security Manager restrictions. (CVE-2016-5018)
It was discovered that Tomcat incorrectly controlled reading system
properties. A malicious application could possibly use this to bypass
Security Manager restrictions. (CVE-2016-6794)
It was discovered that Tomcat incorrectly controlled certain configuration
parameters. A malicious application could possibly use this to bypass
Security Manager restri
OSV
tomcat6, tomcat7 regression
osv·2017-02-02·CVSS 5.9
[MEDIUM] tomcat6, tomcat7 regression
tomcat6, tomcat7 regression
USN-3177-1 fixed vulnerabilities in Tomcat. The update introduced a
regression in environments where Tomcat is started with a security manager.
This update fixes the problem.
We apologize for the inconvenience.
Original advisory details:
It was discovered that the Tomcat realm implementations incorrectly handled
passwords when a username didn't exist. A remote attacker could possibly
use this issue to enumerate usernames. This issue only applied to Ubuntu
12.04 LTS, Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2016-0762)
Alvaro Munoz and Alexander Mirosh discovered that Tomcat incorrectly
limited use of a certain utility method. A malicious application could
possibly use this to bypass Security Manager restrictions. This issue only
applied to Ubuntu 12.04 LT
OSV
tomcat6, tomcat7, tomcat8 vulnerabilities
osv·2017-01-23·CVSS 5.9
CVE-2016-0762 [MEDIUM] tomcat6, tomcat7, tomcat8 vulnerabilities
tomcat6, tomcat7, tomcat8 vulnerabilities
It was discovered that the Tomcat realm implementations incorrectly handled
passwords when a username didn't exist. A remote attacker could possibly
use this issue to enumerate usernames. This issue only applied to Ubuntu
12.04 LTS, Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2016-0762)
Alvaro Munoz and Alexander Mirosh discovered that Tomcat incorrectly
limited use of a certain utility method. A malicious application could
possibly use this to bypass Security Manager restrictions. This issue only
applied to Ubuntu 12.04 LTS, Ubuntu 14.04 LTS and Ubuntu 16.04 LTS.
(CVE-2016-5018)
It was discovered that Tomcat did not protect applications from untrusted
data in the HTTP_PROXY environment variable. A remote attacker could
possibly use this issue t
OSV
CVE-2016-0762: The Realm implementations in Apache Tomcat versions 9
osv·2016-10-28·CVSS 5.9
CVE-2016-0762 [MEDIUM] CVE-2016-0762: The Realm implementations in Apache Tomcat versions 9
The Realm implementations in Apache Tomcat versions 9.0.0.M1 to 9.0.0.M9, 8.5.0 to 8.5.4, 8.0.0.RC1 to 8.0.36, 7.0.0 to 7.0.70 and 6.0.0 to 6.0.45 did not process the supplied password if the supplied user name did not exist. This made a timing attack possible to determine valid user names. Note that the default configuration includes the LockOutRealm which makes exploitation of this vulnerability harder.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2016-0762 CVE-2016-5018 CVE-2016-6794 CVE-2016-6796 CVE-2016-6797 tomcat: various flaws [epel-6]
bugzilla·2016-11-01·CVSS 5.9
CVE-2016-0762 [MEDIUM] CVE-2016-0762 CVE-2016-5018 CVE-2016-6794 CVE-2016-6796 CVE-2016-6797 tomcat: various flaws [epel-6]
CVE-2016-0762 CVE-2016-5018 CVE-2016-6794 CVE-2016-6796 CVE-2016-6797 tomcat: various flaws [epel-6]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of Fedora EPEL.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
[bug automatically created b
Bugzilla
CVE-2016-0762 tomcat: timing attack in Realm implementation
bugzilla·2016-11-01·CVSS 5.9
CVE-2016-0762 [MEDIUM] CVE-2016-0762 tomcat: timing attack in Realm implementation
CVE-2016-0762 tomcat: timing attack in Realm implementation
The following flaw was found in Tomcat:
The Realm implementations did not process the supplied password if the supplied user name did not exist. This made a timing attack possible to determine valid user names. Note that the default configuration includes the LockOutRealm which makes exploitation of this vulnerability harder.
Upstream patches:
6.0.47: https://svn.apache.org/viewvc?view=revision&revision=1758506
7.0.72: https://svn.apache.org/viewvc?view=revision&revision=1758502
8.5.5: https://svn.apache.org/viewvc?view=revision&revision=1758500
8.0.37: https://svn.apache.org/viewvc?view=revision&revision=1758501
External References:
https://tomcat.apache.org/security-6.html#Fixed_in_Apache_Tomcat_6.0.47
https://tomcat.apach
Bugzilla
CVE-2016-0762 CVE-2016-5018 CVE-2016-6794 CVE-2016-6796 CVE-2016-6797 tomcat: various flaws [fedora-all]
bugzilla·2016-11-01·CVSS 5.9
CVE-2016-0762 [MEDIUM] CVE-2016-0762 CVE-2016-5018 CVE-2016-6794 CVE-2016-6796 CVE-2016-6797 tomcat: various flaws [fedora-all]
CVE-2016-0762 CVE-2016-5018 CVE-2016-6794 CVE-2016-6796 CVE-2016-6797 tomcat: various flaws [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of Fedora.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects mult
http://rhn.redhat.com/errata/RHSA-2017-0457.htmlhttp://www.debian.org/security/2016/dsa-3720http://www.securityfocus.com/bid/93939http://www.securitytracker.com/id/1037144https://access.redhat.com/errata/RHSA-2017:0455https://access.redhat.com/errata/RHSA-2017:0456https://access.redhat.com/errata/RHSA-2017:2247https://lists.apache.org/thread.html/1872f96bad43647832bdd84a408794cd06d9cbb557af63085ca10009%40%3Cannounce.tomcat.apache.org%3Ehttps://lists.apache.org/thread.html/343558d982879bf88ec20dbf707f8c11255f8e219e81d45c4f8d0551%40%3Cdev.tomcat.apache.org%3Ehttps://lists.apache.org/thread.html/37220405a377c0182d2afdbc36461c4783b2930fbeae3a17f1333113%40%3Cdev.tomcat.apache.org%3Ehttps://lists.apache.org/thread.html/388a323769f1dff84c9ec905455aa73fbcb20338e3c7eb131457f708%40%3Cdev.tomcat.apache.org%3Ehttps://lists.apache.org/thread.html/39ae1f0bd5867c15755a6f959b271ade1aea04ccdc3b2e639dcd903b%40%3Cdev.tomcat.apache.org%3Ehttps://lists.apache.org/thread.html/3d19773b4cf0377db62d1e9328bf9160bf1819f04f988315086931d7%40%3Cdev.tomcat.apache.org%3Ehttps://lists.apache.org/thread.html/845312a10aabbe2c499fca94003881d2c79fc993d85f34c1f5c77424%40%3Cdev.tomcat.apache.org%3Ehttps://lists.apache.org/thread.html/b5e3f51d28cd5d9b1809f56594f2cf63dcd6a90429e16ea9f83bbedc%40%3Cdev.tomcat.apache.org%3Ehttps://lists.apache.org/thread.html/b84ad1258a89de5c9c853c7f2d3ad77e5b8b2930be9e132d5cef6b95%40%3Cdev.tomcat.apache.org%3Ehttps://lists.apache.org/thread.html/b8a1bf18155b552dcf9a928ba808cbadad84c236d85eab3033662cfb%40%3Cdev.tomcat.apache.org%3Ehttps://lists.apache.org/thread.html/r03c597a64de790ba42c167efacfa23300c3d6c9fe589ab87fe02859c%40%3Cdev.tomcat.apache.org%3Ehttps://lists.apache.org/thread.html/r587e50b86c1a96ee301f751d50294072d142fd6dc08a8987ae9f3a9b%40%3Cdev.tomcat.apache.org%3Ehttps://lists.apache.org/thread.html/r9136ff5b13e4f1941360b5a309efee2c114a14855578c3a2cbe5d19c%40%3Cdev.tomcat.apache.org%3Ehttps://security.netapp.com/advisory/ntap-20180605-0001/https://usn.ubuntu.com/4557-1/https://www.oracle.com//security-alerts/cpujul2021.htmlhttps://www.oracle.com/security-alerts/cpuoct2021.htmlhttp://rhn.redhat.com/errata/RHSA-2017-0457.htmlhttp://www.debian.org/security/2016/dsa-3720http://www.securityfocus.com/bid/93939http://www.securitytracker.com/id/1037144https://access.redhat.com/errata/RHSA-2017:0455https://access.redhat.com/errata/RHSA-2017:0456https://access.redhat.com/errata/RHSA-2017:2247https://lists.apache.org/thread.html/1872f96bad43647832bdd84a408794cd06d9cbb557af63085ca10009%40%3Cannounce.tomcat.apache.org%3Ehttps://lists.apache.org/thread.html/343558d982879bf88ec20dbf707f8c11255f8e219e81d45c4f8d0551%40%3Cdev.tomcat.apache.org%3Ehttps://lists.apache.org/thread.html/37220405a377c0182d2afdbc36461c4783b2930fbeae3a17f1333113%40%3Cdev.tomcat.apache.org%3Ehttps://lists.apache.org/thread.html/388a323769f1dff84c9ec905455aa73fbcb20338e3c7eb131457f708%40%3Cdev.tomcat.apache.org%3Ehttps://lists.apache.org/thread.html/39ae1f0bd5867c15755a6f959b271ade1aea04ccdc3b2e639dcd903b%40%3Cdev.tomcat.apache.org%3Ehttps://lists.apache.org/thread.html/3d19773b4cf0377db62d1e9328bf9160bf1819f04f988315086931d7%40%3Cdev.tomcat.apache.org%3Ehttps://lists.apache.org/thread.html/845312a10aabbe2c499fca94003881d2c79fc993d85f34c1f5c77424%40%3Cdev.tomcat.apache.org%3Ehttps://lists.apache.org/thread.html/b5e3f51d28cd5d9b1809f56594f2cf63dcd6a90429e16ea9f83bbedc%40%3Cdev.tomcat.apache.org%3Ehttps://lists.apache.org/thread.html/b84ad1258a89de5c9c853c7f2d3ad77e5b8b2930be9e132d5cef6b95%40%3Cdev.tomcat.apache.org%3Ehttps://lists.apache.org/thread.html/b8a1bf18155b552dcf9a928ba808cbadad84c236d85eab3033662cfb%40%3Cdev.tomcat.apache.org%3Ehttps://lists.apache.org/thread.html/r03c597a64de790ba42c167efacfa23300c3d6c9fe589ab87fe02859c%40%3Cdev.tomcat.apache.org%3Ehttps://lists.apache.org/thread.html/r587e50b86c1a96ee301f751d50294072d142fd6dc08a8987ae9f3a9b%40%3Cdev.tomcat.apache.org%3Ehttps://lists.apache.org/thread.html/r9136ff5b13e4f1941360b5a309efee2c114a14855578c3a2cbe5d19c%40%3Cdev.tomcat.apache.org%3Ehttps://security.netapp.com/advisory/ntap-20180605-0001/https://usn.ubuntu.com/4557-1/https://www.oracle.com//security-alerts/cpujul2021.htmlhttps://www.oracle.com/security-alerts/cpuoct2021.html
2017-08-10
Published