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CVE-2023-38690— matrix-appservice-irc IRC command injection via admin commands containing newlines

Quick assessment

Affected
matrix-org matrix-appservice-irc
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.

matrix-appservice-irc是Matrix的一款网桥。这个网桥会将所有 IRC 消息传递给 Matrix，并将所有 Matrix 消息传递给 IRC。 Matrix matrix-appservice-irc 1.0.1之前版本存在命令注入漏洞，该漏洞源于允许攻击者使用无法解析的换行符来制作命令并由IRC桥接机器人运行。

CVSS 5.8 · Medium EPSS 0.86% · P57

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2023-38690

Vulnerability Information
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Vulnerability Title
matrix-appservice-irc IRC command injection via admin commands containing newlines
Source: CVE Program / CVE List V5
Vulnerability Description
matrix-appservice-irc is a Node.js IRC bridge for Matrix. Prior to version 1.0.1, it is possible to craft a command with newlines which would not be properly parsed. This would mean you could pass a string of commands as a channel name, which would then be run by the IRC bridge bot. Versions 1.0.1 and above are patched. There are no robust workarounds to the bug. One may disable dynamic channels in the config to disable the most common execution method but others may exist.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Matrix matrix-appservice-irc 命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
matrix-appservice-irc是Matrix的一款网桥。这个网桥会将所有 IRC 消息传递给 Matrix，并将所有 Matrix 消息传递给 IRC。 Matrix matrix-appservice-irc 1.0.1之前版本存在命令注入漏洞，该漏洞源于允许攻击者使用无法解析的换行符来制作命令并由IRC桥接机器人运行。
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
matrix-org matrix-appservice-irc < 1.0.1 -

II. Public POCs for CVE-2023-38690

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III. Intelligence Information for CVE-2023-38690

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Patches & Fixes for CVE-2023-38690 (1)

Vendor Advisories for CVE-2023-38690 (1)

Other References for CVE-2023-38690 (1)

Same Patch Batch · matrix-org · 2023-08-04 · 4 CVEs total

CVE-2023-38686 9.3 CRITICAL Sydent does not verify email server certificates
CVE-2023-38691 5.0 MEDIUM matrix-appservice-bridge doesn't verify the sub parameter of an openId token exhange, allo
CVE-2023-38700 3.5 LOW matrix-appservice-irc events can be crafted to leak parts of targeted messages from other

IV. Related Vulnerabilities

Same product: matrix-appservice-irc
Same vendor: matrix-org
Same weakness: CWE-20

V. Comments for CVE-2023-38690

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