PT-2022-2376 · Nginx · Nginx Njs

P1Umer · Published 2022-02-15 · Updated 2022-09-09 · CVE-2022-27007

Positive Technologies (AI Summary)

CVSS v2.0

10

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions nginx njs version 0.7.2

Description The issue is related to a Use-after-free in the njs function frame alloc() function when it tries to invoke from a restored frame saved with njs function frame save(). This can allow a remote attacker to impact the confidentiality, integrity, and availability of information.

Recommendations For nginx njs version 0.7.2, as a temporary workaround, consider disabling the njs function frame alloc() function until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

BDU:2022-02728

CVE-2022-27007

Affected Products

Nginx Njs

References · 9

• 🔥 https://github.com/nginx/njs/issues/469 · Exploit
• https://github.com/nginx/njs/commit/ad48705bf1f04b4221a5f5b07715ac48b3160d53 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2022-27007 · Security Note
• https://bdu.fstec.ru/vul/2022-02728 · Security Note
• https://osv.dev/vulnerability/CVE-2022-27007 · Vendor Advisory
• https://security.netapp.com/advisory/ntap-20220519-0008 · Note
• https://t.me/cibsecurity/40775 · Telegram Post
• https://t.me/cvenotify/29271 · Telegram Post
• https://t.me/cvenotify/30469 · Telegram Post