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CVE-2017-12871

Published: Sep 1, 2017Updated: May 13, 2026 Sources: CVE List NVD GHSACWE-326
5.9MEDIUM
NVD MITRE
EPSS Score
0.5%
Top 60.7%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available
Self-Check
Not available

Description

The aesEncrypt method in lib/SimpleSAML/Utils/Crypto.php in SimpleSAMLphp 1.14.x through 1.14.11 makes it easier for context-dependent attackers to bypass the encryption protection mechanism by leveraging use of the first 16 bytes of the secret key as the initialization vector (IV).

No summary for this CVE yet.

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-326

Affected Products

Packagist
package-ecosystem
simplesamlphp/simplesamlphp
OSS Libraries
simplesamlphp
oss-projectaka saml2, xml-security
simplesamlphpLibrary
OSS Libraries / generic-library
and 1 more affected products View all →

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Credential Access
View detailed technique mapping

References

https://simplesamlphp.org/security/201703-02
simplesamlphp.org
https://github.com/simplesamlphp/simplesamlphp/commit/77df6a932d46daa35e364925eb73a175010dc904
github.com
https://nvd.nist.gov/vuln/detail/CVE-2017-12871
nvd.nist.gov
and 3 more references View all →

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