Predictable SAML Identifier in pac4j-saml Affects Security
CVE-2019-10755

4.9MEDIUM

Key Information:

Vendor

Pac4j

Status
Pac4j For Saml Protocol
Vendor
CVE Published:
23 September 2019

What is CVE-2019-10755?

A security flaw exists in the SAML identifier generation within pac4j-saml's SAML2Utils.java. The system relies on the RandomStringUtils class from apache commons-lang3, which employs a PRNG algorithm that is not cryptographically secure. As a result, the identifiers can be predicted by attackers, potentially leading to unauthorized access or manipulation. This vulnerability specifically impacts the 3.X version of pac4j-saml.

Affected Version(s)

PAC4J For SAML Protocol All versions prior to version 4.0.0-RC1

References

https://snyk.io/vuln/SNYK-JAVA-ORGPAC4J-467407
x_refsource_MISC

CVSS V3.1

Score:
4.9
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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