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CVE-2017-12872

The (1) Htpasswd authentication source in the authcrypt module and (2) SimpleSAML_Session class in SimpleSAMLphp 1.14.11 and earlier allow remote attackers to conduct timing side-channel attacks by...

Published: Sep 1, 2017Updated: May 13, 2026 Sources: CVE List NVD GHSACWE-200
NVD MITRE
5.9CVSSMEDIUM
EPSS Score
1.4%
Top 30.2%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available

Description

SimpleSAMLphp allows timing side-channel attacks

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-200

Affected Products

simplesamlphp/simplesamlphpPackagistOSS Libraries
n/an/a
simplesamlphpsimplesamlphp
Library
OSS Libraries / generic-library
debian linuxdebian
On-premOS
Operating Systems / linux-distro
packagistpackage-ecosystemOSS Libraries
simplesamlphposs-projectOSS Librariesaka simplesamlphp, saml2, xml-security
debianoss-projectGBOperating Systemsaka debian gnu/linux

Attack Graph

Products CVE Techniques Tactics

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Exploitability

1 exploit source identified

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View exploit details
Official Patch Available

MITRE ATT&CK

1 technique
Collection
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References

https://nvd.nist.gov/vuln/detail/CVE-2017-12872
nvd.nist.gov
https://github.com/simplesamlphp/simplesamlphp/commit/b72c79e3070f930d758f5c269333d63ed7509e2e
github.com
https://github.com/FriendsOfPHP/security-advisories/blob/master/simplesamlphp/simplesamlphp/CVE-2017-12872.yaml
github.com
and 3 more references View all →

Timeline

Published
Sep 1, 2017
Last Updated
May 13, 2026

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