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CVE-2021-39935

Good to know:

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Date: December 13, 2021

An issue has been discovered in GitLab CE/EE affecting all versions starting from 10.5 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2. Unauthorized external users could perform Server Side Requests via the CI Lint API

Language: Ruby

Severity Score

Related Resources (6)

https://gitlab.com/gitlab-org/gitlab/-/issues/346187
https://hackerone.com/reports/1236965
https://nvd.nist.gov/vuln/detail/CVE-2021-39935
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-39935
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39935.json
https://www.mend.io/vulnerability-database/CVE-2021-39935

Severity Score

Weakness Type (CWE)

Server-Side Request Forgery (SSRF)

CWE-918

Top Fix

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Upgrade to version v14.3.6, v14.4.4, v14.5.2

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): NONE
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): NONE
Availability (A): NONE
Additional information:

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