CVE-2017-18122
published 2018-02-02CVE-2017-18122: A signature-validation bypass issue was discovered in SimpleSAMLphp through 1.14.16. A SimpleSAMLphp Service Provider using SAML 1.1 will regard as valid any…
PriorityP339high8.1CVSS 3.0
AVNACHPRNUINSUCHIHAH
EPSS
1.10%
61.8th percentile
A signature-validation bypass issue was discovered in SimpleSAMLphp through 1.14.16. A SimpleSAMLphp Service Provider using SAML 1.1 will regard as valid any unsigned SAML response containing more than one signed assertion, provided that the signature of at least one of the assertions is valid. Attributes contained in all the assertions received will be merged and the entityID of the first assertion received will be used, allowing an attacker to impersonate any user of any IdP given an assertion signed by the targeted IdP.
Affected
8 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | simplesamlphp | < simplesamlphp 1.15.0-1 (bookworm) | simplesamlphp 1.15.0-1 (bookworm) |
| simplesamlphp | simplesamlphp | <= 1.14.16 | — |
| simplesamlphp | simplesamlphp | >= 0 < 1.15.0-1 | 1.15.0-1 |
| simplesamlphp | simplesamlphp | >= 0 < 1.15.0-1 | 1.15.0-1 |
| simplesamlphp | simplesamlphp | >= 0 < 1.14.17 | 1.14.17 |
CVSS provenance
nvdv3.08.1HIGHCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv2.06.8MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P
osv8.1HIGH
vendor_debian8.1HIGH
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GHSA
SimpleSAMLphp Signature validation bypass
ghsa·2022-05-14
CVE-2017-18122 [HIGH] CWE-347 SimpleSAMLphp Signature validation bypass
SimpleSAMLphp Signature validation bypass
A signature-validation bypass issue was discovered in SimpleSAMLphp through 1.14.16. A SimpleSAMLphp Service Provider using SAML 1.1 will regard as valid any unsigned SAML response containing more than one signed assertion, provided that the signature of at least one of the assertions is valid. Attributes contained in all the assertions received will be merged and the entityID of the first assertion received will be used, allowing an attacker to impersonate any user of any IdP given an assertion signed by the targeted IdP.
OSV
SimpleSAMLphp Signature validation bypass
osv·2022-05-14
CVE-2017-18122 [HIGH] SimpleSAMLphp Signature validation bypass
SimpleSAMLphp Signature validation bypass
A signature-validation bypass issue was discovered in SimpleSAMLphp through 1.14.16. A SimpleSAMLphp Service Provider using SAML 1.1 will regard as valid any unsigned SAML response containing more than one signed assertion, provided that the signature of at least one of the assertions is valid. Attributes contained in all the assertions received will be merged and the entityID of the first assertion received will be used, allowing an attacker to impersonate any user of any IdP given an assertion signed by the targeted IdP.
OSV
CVE-2017-18122: A signature-validation bypass issue was discovered in SimpleSAMLphp through 1
osv·2018-02-02·CVSS 8.1
CVE-2017-18122 [HIGH] CVE-2017-18122: A signature-validation bypass issue was discovered in SimpleSAMLphp through 1
A signature-validation bypass issue was discovered in SimpleSAMLphp through 1.14.16. A SimpleSAMLphp Service Provider using SAML 1.1 will regard as valid any unsigned SAML response containing more than one signed assertion, provided that the signature of at least one of the assertions is valid. Attributes contained in all the assertions received will be merged and the entityID of the first assertion received will be used, allowing an attacker to impersonate any user of any IdP given an assertion signed by the targeted IdP.
Debian
CVE-2017-18122: simplesamlphp - A signature-validation bypass issue was discovered in SimpleSAMLphp through 1.14...
vendor_debian·2017·CVSS 8.1
CVE-2017-18122 [HIGH] CVE-2017-18122: simplesamlphp - A signature-validation bypass issue was discovered in SimpleSAMLphp through 1.14...
A signature-validation bypass issue was discovered in SimpleSAMLphp through 1.14.16. A SimpleSAMLphp Service Provider using SAML 1.1 will regard as valid any unsigned SAML response containing more than one signed assertion, provided that the signature of at least one of the assertions is valid. Attributes contained in all the assertions received will be merged and the entityID of the first assertion received will be used, allowing an attacker to impersonate any user of any IdP given an assertion signed by the targeted IdP.
Scope: local
bookworm: resolved (fixed in 1.15.0-1)
bullseye: resolved (fixed in 1.15.0-1)
sid: resolved (fixed in 1.15.0-1)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2017-18122 php-simplesamlphp-saml2: weak authentication in SAML implementation
bugzilla·2018-03-07·CVSS 8.1
CVE-2017-18122 [HIGH] CVE-2017-18122 php-simplesamlphp-saml2: weak authentication in SAML implementation
CVE-2017-18122 php-simplesamlphp-saml2: weak authentication in SAML implementation
The (deprecated) SAML 1.1 implementation would regard as valid any unsigned SAML response containing more than one signed assertion, provided that the signature of at least one of the assertions was valid, allowing an attacker that could obtain a valid signed assertion from an IdP to impersonate users from that IdP.
Discussion:
External References:
https://simplesamlphp.org/security/201710-01
---
Created php-simplesamlphp-saml2 tracking bugs for this issue:
Affects: fedora-all [bug 1552865]
Affects: epel-all [bug 1552864]
---
CVE-2017-18122 (SSPSA 201710-01) is for the SimpleSAMLphp application not the php-simplesamlphp/saml2 library
Dependent bugs have been closed as not a bug. Please close this b
Bugzilla
CVE-2017-18122 php-simplesamlphp-saml2: weak authentication in SAML implementation [fedora-all]
bugzilla·2018-03-07·CVSS 8.1
CVE-2017-18122 [HIGH] CVE-2017-18122 php-simplesamlphp-saml2: weak authentication in SAML implementation [fedora-all]
CVE-2017-18122 php-simplesamlphp-saml2: weak authentication in SAML implementation [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 commit message.
NOTE: this issue affects multiple
Bugzilla
CVE-2017-18122 php-simplesamlphp-saml2: weak authentication in SAML implementation [epel-all]
bugzilla·2018-03-07·CVSS 8.1
CVE-2017-18122 [HIGH] CVE-2017-18122 php-simplesamlphp-saml2: weak authentication in SAML implementation [epel-all]
CVE-2017-18122 php-simplesamlphp-saml2: weak authentication in SAML implementation [epel-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 epel-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 commit message.
NOTE: this issue affects multiple supp
https://lists.debian.org/debian-lts-announce/2018/02/msg00008.htmlhttps://simplesamlphp.org/security/201710-01https://www.debian.org/security/2018/dsa-4127https://lists.debian.org/debian-lts-announce/2018/02/msg00008.htmlhttps://simplesamlphp.org/security/201710-01https://www.debian.org/security/2018/dsa-4127
2018-02-02
Published