Validation of SignedInfo
CVE-2023-49087

7.5HIGH

Key Information:

Vendor

simplesamlphp

Status
xml-security
Vendor
CVE Published:
30 November 2023

What is CVE-2023-49087?

The xml-security library, utilized for XML signatures and encryption, contains a vulnerability that could allow an attacker to forge signatures by manipulating the canonicalized DigestValue of an XML document. This issue arises from inconsistencies in PHP's canonicalization function, which could be exploited to create a false signature. To mitigate this risk, users should ensure they are running patched versions 1.6.12 or 5.0.0-alpha.13 or later.

Affected Version(s)

xml-security = 1.6.11 = 1.6.11

xml-security = 5.0.0-alpha.12 = 5.0.0-alpha.12

References

https://github.com/simplesamlphp/xml-security/security/ad...
x_refsource_CONFIRM
https://github.com/simplesamlphp/xml-security/commit/f509...
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.