CVEvulnerability

CVE-2018-19518

7.5 HIGH Published 2018-11-25 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2018-11-25
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
8.5 HIGH — AV:N/AC:M/Au:S/C:C/I:C/A:C
Weaknesses
CWE-88

Description

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OS commands if the IMAP server name is untrusted input (e.g., entered by a user of a web application) and if rsh has been replaced by a program with different argument semantics.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.

Affected configurations

• php php (>= 5.6.0 <= 5.6.38) • php php (>= 7.0.0 <= 7.0.32) • php php (>= 7.1.0 <= 7.1.24) • php php (>= 7.2.0 <= 7.2.12) • debian debian linux 8.0 • debian debian linux 9.0 • uw-imap project uw-imap 2007f • canonical ubuntu linux 16.04 • canonical ubuntu linux 18.04 • canonical ubuntu linux 19.04

Related

Weakness · CWE (1)

  • CWE-88 Improper Neutralization of Argument Delimiters in a Command weakness

References