CVE-2021-43495

published 2021-11-15

CVE-2021-43495: AlquistManager branch as of commit 280d99f43b11378212652e75f6f3159cde9c1d36 is affected by a directory traversal vulnerability in alquist/IO/input.py. This…

Priority P2 60 high 7.5 CVSS 3.1

AV N AC L PR N UI N S U C H I N A N

EXPLOIT

AlquistManager branch as of commit 280d99f43b11378212652e75f6f3159cde9c1d36 is affected by a directory traversal vulnerability in alquist/IO/input.py. This attack can cause the disclosure of critical secrets stored anywhere on the system and can significantly aid in getting remote code access.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
alquistai	alquist	—	—

Detection & IOCs extracted from sources · hover to see the quote

path /asd/../../../../../../../../etc/passwd↗

path alquist/IO/input.py↗

• → Send a GET request with a path traversal payload targeting /etc/passwd; a successful exploitation response body will match the regex 'root:.*:0:0:' ↗
• → The vulnerable code path is in alquist/IO/input.py; focus file-integrity monitoring and code review on this module for unsanitized file inclusion logic ↗
• → The specific vulnerable commit is 280d99f43b11378212652e75f6f3159cde9c1d36; use this to scope detection to affected deployments ↗

• · The traversal payload uses 8 levels of '../' prefixed with a dummy directory 'asd/'; the exact depth may need tuning depending on the deployment's working directory depth ↗
• · Only one HTTP request is needed to confirm exploitation (max-request: 1), making this a low-noise, high-confidence check ↗

CVSS provenance

nvd v3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

nvd v2.0 5.0 MEDIUM AV:N/AC:L/Au:N/C:P/I:N/A:N

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CWE-22