PT-2022-3358 · Nginx · Nginx Njs

Xmzyshypnc · Published 2022-03-21 · Updated 2022-06-09 · CVE-2022-29780

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Nginx NJS version 0.7.2

Description The issue is related to a buffer overflow in the njs array prototype sort() function of the njs interpreter in the nginx server. This can be exploited by a remote attacker to cause a denial of service.

Recommendations For Nginx NJS version 0.7.2, consider disabling the njs array prototype sort() 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

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

BDU:2022-04118

CVE-2022-29780

Affected Products

Nginx Njs

References · 7

• 🔥 https://github.com/nginx/njs/issues/486 · Exploit
• https://github.com/nginx/njs/commit/8b39afdad9a0761e0a5d4af1a762bd9a6daef572 · Patch
• https://bdu.fstec.ru/vul/2022-04118 · Security Note
• https://osv.dev/vulnerability/CVE-2022-29780 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-29780 · Security Note
• https://security.snyk.io/vuln/SNYK-UNMANAGED-NGINXNJS-2858277 · Note
• https://vuldb.com/ru/?id.201139 · Note