// For flags

CVE-2023-23761

Improper authentication vulnerability in GitHub Enterprise Server leading to modification of secret gists

Severity Score

5.3
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

An improper authentication vulnerability was identified in GitHub Enterprise Server that allowed an unauthorized actor to modify other users' secret gists by authenticating through an SSH certificate authority. To do so, a user had to know the secret gist's URL. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.9 and was fixed in versions 3.4.18, 3.5.15, 3.6.11, 3.7.8, and 3.8.1. This vulnerability was reported via the GitHub Bug Bounty program.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2023-01-17 CVE Reserved
  • 2023-04-07 CVE Published
  • 2024-07-12 EPSS Updated
  • 2024-08-02 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-287: Improper Authentication
CAPEC
  • CAPEC-114: Authentication Abuse
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"
 < 3.4.18
Search vendor "Github" for product "Enterprise Server" and version " < 3.4.18"
-
Affected
Github
Search vendor "Github"
 Enterprise Server
Search vendor "Github" for product "Enterprise Server"
 >= 3.5.0 < 3.5.15
Search vendor "Github" for product "Enterprise Server" and version " >= 3.5.0 < 3.5.15"
-
Affected
Github
Search vendor "Github"
 Enterprise Server
Search vendor "Github" for product "Enterprise Server"
 >= 3.6.0 < 3.6.11
Search vendor "Github" for product "Enterprise Server" and version " >= 3.6.0 < 3.6.11"
-
Affected
Github
Search vendor "Github"
 Enterprise Server
Search vendor "Github" for product "Enterprise Server"
 >= 3.7.0 < 3.7.8
Search vendor "Github" for product "Enterprise Server" and version " >= 3.7.0 < 3.7.8"
-
Affected
Github
Search vendor "Github"
 Enterprise Server
Search vendor "Github" for product "Enterprise Server"
 3.8.0
Search vendor "Github" for product "Enterprise Server" and version "3.8.0"
-
Affected