CVE-2022-31014
Affected versions were found to be vulnerable to SMTP command injection.
Does this matter?
Lower severity and a low EPSS score (2.44%). Track it; it rarely justifies an emergency change on its own.
Description
Nextcloud server is an open source personal cloud server. Affected versions were found to be vulnerable to SMTP command injection. The impact varies based on which commands are supported by the backend SMTP server. However, the main risk here is that the attacker can then hijack an already-authenticated SMTP session and run arbitrary SMTP commands as the email user, such as sending emails to other users, changing the FROM user, and so on. As before, this depends on the configuration of the server itself, but newlines should be sanitized to mitigate such arbitrary SMTP command injection. It is recommended that the Nextcloud Server is upgraded to 22.2.8 , 23.0.5 or 24.0.1. There are no known workarounds for this issue.
- CVSS 3.1
- 3.5 LOWCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
- EPSS
- 2.44% probability · 83th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-74, CWE-93
- Affected
- nextcloud/nextcloud server
- Source
- security-advisories@github.com
References
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-264h-3v4w-6xh2Exploit, Third Party Advisory
- https://github.com/nextcloud/server/pull/32428Issue Tracking, Patch, Third Party Advisory
- https://hackerone.com/reports/1516377Exploit, Issue Tracking, Patch, Third Party Advisory
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-264h-3v4w-6xh2Exploit, Third Party Advisory
- https://github.com/nextcloud/server/pull/32428Issue Tracking, Patch, Third Party Advisory
- https://hackerone.com/reports/1516377Exploit, Issue Tracking, Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.