Vulnerability Monitor

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CVE-2018-19518

University of Washington IMAP Toolkit 2007f on UNIX, as used in imap_open() in PHP and other products, launches an rsh command (by means of the imap_rimap function in c-client/imap4r1.c and the tcp_aopen function in osdep/unix/tcp_unix.c) without preventing argument injection, which might allow remote attackers to execute arbitrary OS commands if the IMAP server name is untrusted input (e.g., entered by a user of a web application) and if rsh has been replaced by a program with different argument semantics. For example, if rsh is a link to ssh (as seen on Debian and Ubuntu systems), then the attack can use an IMAP server name containing a "-oProxyCommand" argument.

Published

2018-11-25T10:29:00.250

Last Modified

2024-11-21T03:58:04.993

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 Vector

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

  • Access Vector: NETWORK
  • Access Complexity: MEDIUM
  • Authentication: SINGLE
  • Confidentiality Impact: COMPLETE
  • Integrity Impact: COMPLETE
  • Availability Impact: COMPLETE
Exploitability Score

6.8

Impact Score

10.0

Weaknesses
  • Type: Primary
    CWE-88
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application php php ≤ 5.6.38 Yes
Application php php ≤ 7.0.32 Yes
Application php php ≤ 7.1.24 Yes
Application php php ≤ 7.2.12 Yes
Operating System debian debian_linux 8.0 Yes
Operating System debian debian_linux 9.0 Yes
Application uw-imap_project uw-imap 2007f Yes
Operating System canonical ubuntu_linux 16.04 Yes
Operating System canonical ubuntu_linux 18.04 Yes
Operating System canonical ubuntu_linux 19.04 Yes
References