PT-2022-9422 · Isomorphic Git · @Isomorphic-Git/Cors-Proxy

Jasmin Landry · Published 2022-01-21 · Updated 2022-01-28 · CVE-2021-23664

Positive Technologies (AI Summary)

CVSS v3.1

8.6

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions @isomorphic-git/cors-proxy versions prior to 2.7.1

Description The issue is related to Server-side Request Forgery (SSRF) due to missing sanitization and validation of the redirection action in middleware.js. This allows for potential exploitation.

Recommendations For versions prior to 2.7.1, update to version 2.7.1 or later to resolve the issue. As a temporary workaround, consider disabling the redirection action in middleware.js until a patch is available. Restrict access to the middleware.js module to minimize the risk of exploitation.

Exploit

Fix

SSRF

Weakness Enumeration

CWE-918

Related Identifiers

CVE-2021-23664

GHSA-V82V-RQ72-PHQ9

SNYK-JS-ISOMORPHICGITCORSPROXY-1734788

Affected Products

@Isomorphic-Git/Cors-Proxy

References · 7

• 🔥 https://snyk.io/vuln/SNYK-JS-ISOMORPHICGITCORSPROXY-1734788 · Exploit
• https://github.com/isomorphic-git/cors-proxy/commit/1b1c91e71d946544d97ccc7cf0ac62b859e03311 · Patch
• https://osv.dev/vulnerability/GHSA-v82v-rq72-phq9 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-23664 · Security Note
• https://osv.dev/vulnerability/CVE-2021-23664 · Vendor Advisory
• https://github.com/isomorphic-git/cors-proxy · Note
• https://t.me/cvenotify/25979 · Telegram Post