// For flags

CVE-2024-9487

An Improper Verification of Cryptographic Signature vulnerability was identified in GitHub Enterprise Server that allowed SAML SSO authentication to be bypassed when the encrypted assertions feature was enabled

Severity Score

9.5
*CVSS v4

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track*
*SSVC
Descriptions

An improper verification of cryptographic signature vulnerability was identified in GitHub Enterprise Server that allowed SAML SSO authentication to be bypassed resulting in unauthorized provisioning of users and access to the instance. Exploitation required the encrypted assertions feature to be enabled, and the attacker would require direct network access as well as a signed SAML response or metadata document. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.15 and was fixed in versions 3.11.16, 3.12.10, 3.13.5, and 3.14.2. This vulnerability was reported via the GitHub Bug Bounty program.

*Credits: SecureSAML.com
CVSS Scores
Attack Vector
Network
Attack Complexity
High
Attack Requirements
Present
Privileges Required
None
User Interaction
None
System
Vulnerable | Subsequent
Confidentiality
High
High
Integrity
High
High
Availability
Low
Low
Attack Vector
Network
Attack Complexity
High
Attack Requirements
Present
Privileges Required
None
User Interaction
None
System
Vulnerable | Subsequent
Confidentiality
High
High
Integrity
High
High
Availability
Low
Low
* Common Vulnerability Scoring System
SSVC
  • Decision:Track*
Exploitation
None
Automatable
No
Tech. Impact
Total
* Organization's Worst-case Scenario
Timeline
  • 2024-10-03 CVE Reserved
  • 2024-10-10 CVE Published
  • 2024-10-11 CVE Updated
  • 2024-11-11 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-347: Improper Verification of Cryptographic Signature
CAPEC
  • CAPEC-115: Authentication Bypass
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
GitHub
Search vendor "GitHub"
Enterprise Server
Search vendor "GitHub" for product "Enterprise Server"
>= 3.11.0 <= 3.11.15
Search vendor "GitHub" for product "Enterprise Server" and version " >= 3.11.0 <= 3.11.15"
en
Affected
GitHub
Search vendor "GitHub"
Enterprise Server
Search vendor "GitHub" for product "Enterprise Server"
>= 3.12.0 <= 3.12.9
Search vendor "GitHub" for product "Enterprise Server" and version " >= 3.12.0 <= 3.12.9"
en
Affected
GitHub
Search vendor "GitHub"
Enterprise Server
Search vendor "GitHub" for product "Enterprise Server"
>= 3.13.0 <= 3.13.4
Search vendor "GitHub" for product "Enterprise Server" and version " >= 3.13.0 <= 3.13.4"
en
Affected
GitHub
Search vendor "GitHub"
Enterprise Server
Search vendor "GitHub" for product "Enterprise Server"
>= 3.14.0 <= 3.14.1
Search vendor "GitHub" for product "Enterprise Server" and version " >= 3.14.0 <= 3.14.1"
en
Affected