Invalid Commit Processing Can Lead to Regular Expression DoS Attack on Server
CVE-2024-3114

6.5MEDIUM

Key Information:

Vendor
Gitlab
Status
Gitlab
Vendor
CVE Published:
8 August 2024

Badges

👾 Exploit Exists🟡 Public PoC

Summary

An issue has been identified in GitLab CE/EE that affects multiple versions, where the processing logic for parsing invalid commits is flawed. This vulnerability can potentially allow for a regular expression denial of service (DoS) attack on the server. Attackers may exploit this flaw by sending specially crafted invalid commit data which, when processed by the server, could lead to performance degradation or unavailability. The affected versions span from 11.10 to 17.2.2, underscoring the need for vigilance and timely updates to secure GitLab installations against such threats.

Affected Version(s)

GitLab 11.10 < 17.0.6

GitLab 17.1 < 17.1.4

GitLab 17.2 < 17.2.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2024-3114 - Proof of Concept

References

https://gitlab.com/gitlab-org/gitlab/-/issues/452547
issue-trackingpermissions-required
https://hackerone.com/reports/2416630
technical-descriptionexploitpermissions-required

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Collectors

NVD DatabaseMitre Database1 Proof of Concept(s)

Credit

Thanks [joaxcar](https://hackerone.com/joaxcar) for reporting this vulnerability through our HackerOne bug bounty program
.