GitLab EE Under Denial of Service Attack Due to Malicious JUnit Test Report File
CVE-2023-6678

4.3MEDIUM

Key Information:

Vendor

Gitlab
Status
Gitlab
Vendor
CVE Published:
12 April 2024

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2023-6678?

An issue has been discovered in GitLab EE affecting all versions before 16.8.6, all versions starting from 16.9 before 16.9.4, all versions starting from 16.10 before 16.10.2. It was possible for an attacker to cause a denial of service using malicious crafted content in a junit test report file.

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Deploy the Patch

Affected Version(s)

GitLab 0 < 16.8.6

GitLab 16.9 < 16.9.4

GitLab 16.10 < 16.10.2

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-2023-6678 - Proof of Concept

References

https://gitlab.com/gitlab-org/gitlab/-/issues/434689
issue-trackingpermissions-required
https://hackerone.com/reports/2268037
technical-descriptionexploitpermissions-required

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability Reserved

Credit

Thanks `Anonymizer` for reporting this vulnerability through our HackerOne bug bounty program
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