Vulnerability Monitor

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CVE-2022-31014

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.

Published

2022-07-05T18:15:07.937

Last Modified

2024-11-21T07:03:42.933

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.4 (MEDIUM)

CVSSv2 Vector

AV:N/AC:M/Au:S/C:N/I:P/A:N

  • Access Vector: NETWORK
  • Access Complexity: MEDIUM
  • Authentication: SINGLE
  • Confidentiality Impact: NONE
  • Integrity Impact: PARTIAL
  • Availability Impact: NONE
Exploitability Score

6.8

Impact Score

2.9

Weaknesses
  • Type: Secondary
    CWE-74
    CWE-93
  • Type: Primary
    CWE-74
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application nextcloud nextcloud_server < 19.0.13.7 Yes
Application nextcloud nextcloud_server < 22.2.8 Yes
Application nextcloud nextcloud_server < 20.0.14.6 Yes
Application nextcloud nextcloud_server < 21.0.9.5 Yes
Application nextcloud nextcloud_server < 23.0.5 Yes
Application nextcloud nextcloud_server 24.0.0 Yes
Application nextcloud nextcloud_server 24.0.0 Yes
Application nextcloud nextcloud_server 24.0.0 Yes
Application nextcloud nextcloud_server 24.0.0 Yes
Application nextcloud nextcloud_server 24.0.0 Yes
Application nextcloud nextcloud_server 24.0.0 Yes
Application nextcloud nextcloud_server 24.0.0 Yes
References