PT-2023-11527 · Nginx · Nginx Njs

L0Kihardt · Published 2023-04-04 · Updated 2025-08-12 · CVE-2020-19692

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Nginx NJS version 0feca92

Description A Buffer Overflow issue allows a remote attacker to execute arbitrary code via the njs module read function in the njs module.c file. This enables the attacker to potentially gain control over the system.

Recommendations For Nginx NJS version 0feca92, consider disabling the njs module read function as a temporary workaround until a patch is available. Restrict access to the njs module.c file 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-120

Related Identifiers

AZL-26030

CVE-2020-19692

Affected Products

Nginx Njs

References · 6

• 🔥 https://github.com/nginx/njs/issues/187 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2020-19692 · Security Note
• https://osv.dev/vulnerability/AZL-26030 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-19692 · Vendor Advisory
• https://t.me/cveNotify/131897 · Telegram Post
• https://t.me/cvenotify/47488 · Telegram Post