PT-2022-20552 · Nextcloud · Nextcloud Mail

Nickvergessen · Published 2022-08-04 · Updated 2022-08-10 · CVE-2022-31132

Positive Technologies (AI Summary)

CVSS v3.1

8.3

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Nextcloud Mail versions prior to 1.12.7 Nextcloud Mail versions prior to 1.13.6

Description Nextcloud Mail is an email application for the nextcloud personal cloud product. Affected versions shipped with a CSS minifier on the path ./vendor/cerdic/css-tidy/css optimiser.php. Access to the minifier is unrestricted and access may lead to Server-Side Request Forgery (SSRF).

Recommendations For versions prior to 1.12.7, upgrade to Mail 1.12.7. For versions prior to 1.13.6, upgrade to Mail 1.13.6. As a temporary workaround for users unable to upgrade, manually delete the file located at ./vendor/cerdic/css-tidy/css optimiser.php.

Exploit

Fix

SSRF

Weakness Enumeration

CWE-918

Related Identifiers

CVE-2022-31132

GHSA-24PM-RJFV-23MH

Affected Products

Nextcloud Mail

References · 5

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/31xxx/CVE-2022-31132.json · Exploit
• https://osv.dev/vulnerability/CVE-2022-31132 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-31132 · Security Note
• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-24pm-rjfv-23mh · Note
• https://t.me/cibsecurity/47562 · Telegram Post