CVE-2018-1283
published 2018-03-26CVE-2018-1283: In Apache httpd 2.4.0 to 2.4.29, when mod_session is configured to forward its session data to CGI applications (SessionEnv on, not the default), a remote user…
PriorityP336medium5.3CVSS 3.0
AVNACHPRLUINSUCNIHAN
EPSS
10.12%
95.1th percentile
In Apache httpd 2.4.0 to 2.4.29, when mod_session is configured to forward its session data to CGI applications (SessionEnv on, not the default), a remote user may influence their content by using a "Session" header. This comes from the "HTTP_SESSION" variable name used by mod_session to forward its data to CGIs, since the prefix "HTTP_" is also used by the Apache HTTP Server to pass HTTP header fields, per CGI specifications.
Affected
14 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apache | http_server | 2.4.0 – 2.4.29 | — |
| apache_software_foundation | apache_http_server | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| debian | apache2 | < apache2 2.4.33-1 (bookworm) | apache2 2.4.33-1 (bookworm) |
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| redhat | enterprise_linux | — | — |
| redhat | enterprise_linux | — | — |
| redhat | enterprise_linux | — | — |
| redhat | enterprise_linux | — | — |
| redhat | enterprise_linux | — | — |
CVSS provenance
nvdv3.05.3MEDIUMCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
nvdv2.03.5LOWAV:N/AC:M/Au:S/C:N/I:P/A:N
osv7.5HIGH
vendor_ubuntu7.5HIGH
vendor_debian5.3MEDIUM
vendor_redhat5.3MEDIUM
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Ubuntu
Apache HTTP Server vulnerabilities
vendor_ubuntu·2018-04-30·CVSS 7.5
CVE-2017-15710 [HIGH] Apache HTTP Server vulnerabilities
Title: Apache HTTP Server vulnerabilities
Summary: Several security issues were fixed in the Apache HTTP Server.
USN-3627-1 fixed vulnerabilities in Apache HTTP Server. This update
provides the corresponding updates for Ubuntu 18.04 LTS.
Original advisory details:
Alex Nichols and Jakob Hirsch discovered that the Apache HTTP Server
mod_authnz_ldap module incorrectly handled missing charset encoding
headers. A remote attacker could possibly use this issue to cause the
server to crash, resulting in a denial of service. (CVE-2017-15710)
Elar Lang discovered that the Apache HTTP Server incorrectly handled
certain characters specified in . A remote attacker could
possibly use this issue to upload certain files, contrary to expectations.
(CVE-2017-15715)
It was discovered that the Apache H
Ubuntu
Apache HTTP Server vulnerabilities
vendor_ubuntu·2018-04-19·CVSS 7.5
CVE-2017-15710 [HIGH] Apache HTTP Server vulnerabilities
Title: Apache HTTP Server vulnerabilities
Summary: Several security issues were fixed in the Apache HTTP Server.
Alex Nichols and Jakob Hirsch discovered that the Apache HTTP Server
mod_authnz_ldap module incorrectly handled missing charset encoding
headers. A remote attacker could possibly use this issue to cause the
server to crash, resulting in a denial of service. (CVE-2017-15710)
Elar Lang discovered that the Apache HTTP Server incorrectly handled
certain characters specified in . A remote attacker could
possibly use this issue to upload certain files, contrary to expectations.
(CVE-2017-15715)
It was discovered that the Apache HTTP Server mod_session module
incorrectly handled certain headers. A remote attacker could possibly use
this issue to influence session data. (CVE-2018-12
Red Hat
httpd: Improper handling of headers in mod_session can allow a remote user to modify session data for CGI applications
vendor_redhat·2018-03-21·CVSS 5.3
CVE-2018-1283 [MEDIUM] CWE-20 httpd: Improper handling of headers in mod_session can allow a remote user to modify session data for CGI applications
httpd: Improper handling of headers in mod_session can allow a remote user to modify session data for CGI applications
In Apache httpd 2.4.0 to 2.4.29, when mod_session is configured to forward its session data to CGI applications (SessionEnv on, not the default), a remote user may influence their content by using a "Session" header. This comes from the "HTTP_SESSION" variable name used by mod_session to forward its data to CGIs, since the prefix "HTTP_" is also used by the Apache HTTP Server to pass HTTP header fields, per CGI specifications.
It has been discovered that the mod_session module of Apache HTTP Server (httpd), through version 2.4.29, has an improper input validation flaw in the way it handles HTTP session headers in some configurations. A remote attacker may influence their
Debian
CVE-2018-1283: apache2 - In Apache httpd 2.4.0 to 2.4.29, when mod_session is configured to forward its s...
vendor_debian·2018·CVSS 5.3
CVE-2018-1283 [MEDIUM] CVE-2018-1283: apache2 - In Apache httpd 2.4.0 to 2.4.29, when mod_session is configured to forward its s...
In Apache httpd 2.4.0 to 2.4.29, when mod_session is configured to forward its session data to CGI applications (SessionEnv on, not the default), a remote user may influence their content by using a "Session" header. This comes from the "HTTP_SESSION" variable name used by mod_session to forward its data to CGIs, since the prefix "HTTP_" is also used by the Apache HTTP Server to pass HTTP header fields, per CGI specifications.
Scope: local
bookworm: resolved (fixed in 2.4.33-1)
bullseye: resolved (fixed in 2.4.33-1)
forky: resolved (fixed in 2.4.33-1)
sid: resolved (fixed in 2.4.33-1)
trixie: resolved (fixed in 2.4.33-1)
OSV
libxmltok vulnerabilities
osv·2025-01-13·CVSS 6.8
CVE-2015-1283 libxmltok vulnerabilities
libxmltok vulnerabilities
It was discovered that Expat, contained within the xmltok library,
incorrectly handled malformed XML data. If a user or application were
tricked into opening a crafted XML file, an attacker could cause a denial
of service, or possibly execute arbitrary code. (CVE-2015-1283,
CVE-2016-0718, CVE-2016-4472, CVE-2019-15903)
It was discovered that Expat, contained within the xmltok library,
incorrectly handled XML data containing a large number of colons, which
could lead to excessive resource consumption. If a user or application
were tricked into opening a crafted XML file, an attacker could possibly
use this issue to cause a denial of service. (CVE-2018-20843)
It was discovered that Expat, contained within the xmltok library,
incorrectly handled certain input, whi
OSV
libxmltok vulnerabilities
osv·2022-07-19·CVSS 5.0
CVE-2012-1148 libxmltok vulnerabilities
libxmltok vulnerabilities
Tim Boddy, Gustavo Grieco and others discovered that Expat, that is
integrated in xmltok library, incorrectly handled certain files.
An attacker could possibly use these issues to cause a denial of
service, or possibly execute arbitrary code. These issues were only
addressed in Ubuntu 16.04 ESM. (CVE-2012-1148, CVE-2015-1283,
CVE-2016-0718, CVE-2016-4472, CVE-2018-20843, CVE-2019-15903,
CVE-2021-46143, CVE-2022-22822, CVE-2022-22823, CVE-2022-22824,
CVE-2022-22825, CVE-2022-22826, CVE-2022-22827)
It was discovered that Expat, that is integrated in xmltok library,
incorrectly handled encoding validation of certain files. An attacker
could possibly use this issue to cause a denial of service, or
possibly execute arbitrary code. (CVE-2022-25235)
It was discovered
GHSA
GHSA-69h6-845f-grx4: In Apache httpd 2
ghsa_unreviewed·2022-05-13
CVE-2018-1283 [MEDIUM] GHSA-69h6-845f-grx4: In Apache httpd 2
In Apache httpd 2.4.0 to 2.4.29, when mod_session is configured to forward its session data to CGI applications (SessionEnv on, not the default), a remote user may influence their content by using a "Session" header. This comes from the "HTTP_SESSION" variable name used by mod_session to forward its data to CGIs, since the prefix "HTTP_" is also used by the Apache HTTP Server to pass HTTP header fields, per CGI specifications.
OSV
apache2 vulnerabilities
osv·2018-04-30·CVSS 7.5
CVE-2017-15710 [HIGH] apache2 vulnerabilities
apache2 vulnerabilities
USN-3627-1 fixed vulnerabilities in Apache HTTP Server. This update
provides the corresponding updates for Ubuntu 18.04 LTS.
Original advisory details:
Alex Nichols and Jakob Hirsch discovered that the Apache HTTP Server
mod_authnz_ldap module incorrectly handled missing charset encoding
headers. A remote attacker could possibly use this issue to cause the
server to crash, resulting in a denial of service. (CVE-2017-15710)
Elar Lang discovered that the Apache HTTP Server incorrectly handled
certain characters specified in . A remote attacker could
possibly use this issue to upload certain files, contrary to expectations.
(CVE-2017-15715)
It was discovered that the Apache HTTP Server mod_session module
incorrectly handled certain headers. A remote attacker could
OSV
apache2 vulnerabilities
osv·2018-04-19·CVSS 7.5
CVE-2017-15710 [HIGH] apache2 vulnerabilities
apache2 vulnerabilities
Alex Nichols and Jakob Hirsch discovered that the Apache HTTP Server
mod_authnz_ldap module incorrectly handled missing charset encoding
headers. A remote attacker could possibly use this issue to cause the
server to crash, resulting in a denial of service. (CVE-2017-15710)
Elar Lang discovered that the Apache HTTP Server incorrectly handled
certain characters specified in . A remote attacker could
possibly use this issue to upload certain files, contrary to expectations.
(CVE-2017-15715)
It was discovered that the Apache HTTP Server mod_session module
incorrectly handled certain headers. A remote attacker could possibly use
this issue to influence session data. (CVE-2018-1283)
Robert Swiecki discovered that the Apache HTTP Server incorrectly handled
certain req
OSV
CVE-2018-1283: In Apache httpd 2
osv·2018-03-26·CVSS 5.3
CVE-2018-1283 [MEDIUM] CVE-2018-1283: In Apache httpd 2
In Apache httpd 2.4.0 to 2.4.29, when mod_session is configured to forward its session data to CGI applications (SessionEnv on, not the default), a remote user may influence their content by using a "Session" header. This comes from the "HTTP_SESSION" variable name used by mod_session to forward its data to CGIs, since the prefix "HTTP_" is also used by the Apache HTTP Server to pass HTTP header fields, per CGI specifications.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2018-1000805 python-paramiko: Authentication bypass in auth_handler.py
bugzilla·2018-10-09·CVSS 8.8
CVE-2018-1000805 [HIGH] CVE-2018-1000805 python-paramiko: Authentication bypass in auth_handler.py
CVE-2018-1000805 python-paramiko: Authentication bypass in auth_handler.py
Python Paramiko through versions 2.4.1, 2.3.2, 2.2.3, 2.1.5, 2.0.8, 1.18.5 and 1.17.6 is vulnerable to an authentication bypass in paramiko/auth_handler.py. A remote attacker could exploit this vulnerability in paramiko SSH servers to execute arbitrary code.
Upstream Issue:
https://github.com/paramiko/paramiko/issues/1283
Upstream Patch:
https://github.com/paramiko/paramiko/commit/56c96a65
Discussion:
Created python-paramiko tracking bugs for this issue:
Affects: epel-all [bug 1637265]
Affects: fedora-all [bug 1637264]
Affects: openstack-rdo [bug 1637266]
---
OpenStack consumes the version of paramiko provided by RHEL. However, as per the statement, OpenStack does not use the SSH server functionality of
Bugzilla
CVE-2018-1283 httpd: Improper handling of headers in mod_session can allow a remote user to modify session data for CGI applications [fedora-all]
bugzilla·2018-03-26·CVSS 5.3
CVE-2018-1283 [MEDIUM] CVE-2018-1283 httpd: Improper handling of headers in mod_session can allow a remote user to modify session data for CGI applications [fedora-all]
CVE-2018-1283 httpd: Improper handling of headers in mod_session can allow a remote user to modify session data for CGI applications [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-all.
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 c
Bugzilla
CVE-2018-1283 httpd: Improper handling of headers in mod_session can allow a remote user to modify session data for CGI applications
bugzilla·2018-03-26·CVSS 5.3
CVE-2018-1283 [MEDIUM] CVE-2018-1283 httpd: Improper handling of headers in mod_session can allow a remote user to modify session data for CGI applications
CVE-2018-1283 httpd: Improper handling of headers in mod_session can allow a remote user to modify session data for CGI applications
Apache HTTP Server (httpd) through version 2.4.29 has a vulnerability in the handling of HTTP session headers in mod_session. When mod_session is configured to forward its session data to CGI applications (SessionEnv on, not the default), a remote user may influence their content by using a "Session" header.
Upstream Advisory:
https://httpd.apache.org/security/vulnerabilities_24.html
Upstream Patch:
https://svn.apache.org/viewvc?view=revision&sortby=log&revision=1824477
Discussion:
Created httpd tracking bugs for this issue:
Affects: fedora-all [bug 1560396]
---
Statement:
This issue did not affect the versions of httpd as shipped with Red Hat En
http://www.openwall.com/lists/oss-security/2018/03/24/4http://www.securityfocus.com/bid/103520http://www.securitytracker.com/id/1040568https://access.redhat.com/errata/RHSA-2018:3558https://access.redhat.com/errata/RHSA-2019:0366https://access.redhat.com/errata/RHSA-2019:0367https://httpd.apache.org/security/vulnerabilities_24.htmlhttps://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/r06f0d87ebb6d59ed8379633f36f72f5b1f79cadfda72ede0830b42cf%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/r15f9aa4427581a1aecb4063f1b4b983511ae1c9935e2a0a6876dad3c%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/r6521a7f62276340eabdb3339b2aa9a38c5f59d978497a1f794af53be%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/rd336919f655b7ff309385e34a143e41c503e133da80414485b3abcc9%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/rfcf929bd33a6833e3f0c35eebdad70d5060665f9c4e17ea467c66770%40%3Ccvs.httpd.apache.org%3Ehttps://security.netapp.com/advisory/ntap-20180601-0004/https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03909en_ushttps://usn.ubuntu.com/3627-1/https://usn.ubuntu.com/3627-2/https://www.debian.org/security/2018/dsa-4164https://www.tenable.com/security/tns-2019-09http://www.openwall.com/lists/oss-security/2018/03/24/4http://www.securityfocus.com/bid/103520http://www.securitytracker.com/id/1040568https://access.redhat.com/errata/RHSA-2018:3558https://access.redhat.com/errata/RHSA-2019:0366https://access.redhat.com/errata/RHSA-2019:0367https://httpd.apache.org/security/vulnerabilities_24.htmlhttps://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/r06f0d87ebb6d59ed8379633f36f72f5b1f79cadfda72ede0830b42cf%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/r15f9aa4427581a1aecb4063f1b4b983511ae1c9935e2a0a6876dad3c%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/r6521a7f62276340eabdb3339b2aa9a38c5f59d978497a1f794af53be%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/rd336919f655b7ff309385e34a143e41c503e133da80414485b3abcc9%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/rfcf929bd33a6833e3f0c35eebdad70d5060665f9c4e17ea467c66770%40%3Ccvs.httpd.apache.org%3Ehttps://security.netapp.com/advisory/ntap-20180601-0004/https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03909en_ushttps://usn.ubuntu.com/3627-1/https://usn.ubuntu.com/3627-2/https://www.debian.org/security/2018/dsa-4164https://www.tenable.com/security/tns-2019-09
2018-03-26
Published