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HIGH

php: imap_open() allows running arbitrary shell commands via mailbox parameter

Published Nov 25, 2018

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OS commands if the IMAP server name is untrusted input (e.g., entered by a user of a web application) and if rsh has been replaced by a program with different argument semantics.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

Remediation

No remediation recorded yet.

References (25)

Change history (0)

No recorded changes yet.

Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Nov 25, 2018
Updated Aug 5, 2024
Reserved Nov 25, 2018
NVD
Status Modified
Modified Jun 17, 2026
Red Hat
Severity Moderate
Public date Nov 19, 2018
ENISA EUVD
Assigner mitre
Published Nov 25, 2018
Updated Aug 5, 2024
Exploited since n/a
EUVD-2018-11207