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CVE-2023-3906— Improper Validation of Specified Type of Input in GitLab

Quick assessment

Affected
GitLab GitLab
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

GitLab Enterprise Edition（EE）是美国GitLab公司的一套内容管理系统。 GitLab Enterprise Edition存在安全漏洞，该漏洞源于输入验证问题，允许经过身份验证的攻击者制作绕过资产代理的图像url。

CVSS 3.5 · Low EPSS 0.57% · P45

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 3

VendorProduct Version RangeStatus
GitLab GitLab 12.3< 16.2.8 affected
16.3< 16.3.5 affected
16.4< 16.4.1 affected
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I. Basic Information for CVE-2023-3906

Vulnerability Information
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Vulnerability Title
Improper Validation of Specified Type of Input in GitLab
Source: CVE Program / CVE List V5
Vulnerability Description
An input validation issue in the asset proxy in GitLab EE, affecting all versions from 12.3 prior to 16.2.8, 16.3 prior to 16.3.5, and 16.4 prior to 16.4.1, allowed an authenticated attacker to craft image urls which bypass the asset proxy.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1287
Source: CVE Program / CVE List V5
Vulnerability Title
GitLab Enterprise Edition 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GitLab Enterprise Edition（EE）是美国GitLab公司的一套内容管理系统。 GitLab Enterprise Edition存在安全漏洞，该漏洞源于输入验证问题，允许经过身份验证的攻击者制作绕过资产代理的图像url。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
GitLab GitLab 12.3 ~ 16.2.8 cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2023-3906

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III. Intelligence Information for CVE-2023-3906

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Other References for CVE-2023-3906 (2)

Same Patch Batch · GitLab · 2023-09-29 · 12 CVEs total

CVE-2023-3413 6.5 MEDIUM Insertion of Sensitive Information Into Sent Data in GitLab
CVE-2023-3115 5.4 MEDIUM Incorrect User Management in GitLab
CVE-2023-3914 5.4 MEDIUM Incorrect User Management in GitLab
CVE-2023-5198 4.3 MEDIUM Incorrect Authorization in GitLab
CVE-2023-0989 4.3 MEDIUM Improper Ownership Management in GitLab
CVE-2023-3920 4.3 MEDIUM Incorrect Authorization in GitLab
CVE-2023-3917 4.3 MEDIUM Improper Validation of Specified Type of Input in GitLab
CVE-2023-4532 4.3 MEDIUM Incorrect Authorization in GitLab
CVE-2023-2233 3.1 LOW Missing Authorization in GitLab
CVE-2023-3979 3.1 LOW Incorrect Authorization in GitLab
CVE-2023-3922 3.0 LOW URL Redirection to Untrusted Site ('Open Redirect') in GitLab

IV. Related Vulnerabilities

Same product: GitLab
Same vendor: GitLab
Same weakness: CWE-1287

V. Comments for CVE-2023-3906

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