PT-2022-3709 · Nginx · Nginx Njs

Dramthy · Published 2022-07-18 · Updated 2022-07-25 · CVE-2022-34029

Positive Technologies (AI Summary)

CVSS v3.1

9.1

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Nginx NJS version 0.7.4

Description The issue is related to an out-of-bounds read in the njs scope value() function of the njs interpreter in the Nginx server. This could allow a remote attacker to execute arbitrary code. The vulnerability is associated with reading data beyond the buffer boundaries in memory.

Recommendations For Nginx NJS version 0.7.4, consider disabling the njs scope value() function as a temporary workaround until a patch is available. Restrict access to the njs interpreter to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

BDU:2022-04497

CVE-2022-34029

Affected Products

Nginx Njs

References · 7

• 🔥 https://github.com/nginx/njs/issues/506 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2022-34029 · Security Note
• https://bdu.fstec.ru/vul/2022-04497 · Security Note
• https://osv.dev/vulnerability/CVE-2022-34029 · Vendor Advisory
• https://t.me/cvenotify/33334 · Telegram Post
• https://t.me/cibsecurity/46513 · Telegram Post
• https://vuldb.com/ru/?id.204148 · Note