PT-2022-5323 · Nginx · Nginx Njs

Asuk4O · Published 2022-10-28 · Updated 2024-08-03 · CVE-2022-43285

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 0.7.4

Description The issue is related to a buffer overflow in the njs promise reaction job function of the njs interpreter in the nginx server. This could allow a remote attacker to cause a denial of service. The vendor disputes the significance of this report, stating that NJS does not operate on untrusted input.

Recommendations For Nginx NJS version 0.7.4, consider disabling the njs promise reaction job 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

Memory Corruption

Buffer Overflow

Weakness Enumeration

CWE-787

CWE-119

Related Identifiers

BDU:2022-06628

CVE-2022-43285

Affected Products

Nginx Njs

References · 9

• 🔥 https://github.com/nginx/njs/issues/533 · Exploit
• https://bdu.fstec.ru/vul/2022-06628 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-43285 · Security Note
• https://osv.dev/vulnerability/CVE-2022-43285 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2022-43285 · Vendor Advisory
• https://docs.bell-sw.com/security/cves/CVE-2022-43285 · Note
• https://t.me/cvenotify/88774 · Telegram Post
• https://t.me/cvenotify/39451 · Telegram Post
• https://t.me/cvenotify/38276 · Telegram Post