CVE-2018-19518 Detail

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OS commands if the IMAP server name is untrusted input (e.g., entered by a user of a web application) and if rsh has been replaced by a program with different argument semantics.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


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  7.5 HIGH
Vector:  CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H


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Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.securityfocus.com/bid/106018 Third Party Advisory  VDB Entry 
http://www.securitytracker.com/id/1042157 Third Party Advisory  VDB Entry 
https://antichat.com/threads/463395/#post-4254681 Exploit  Third Party Advisory 
https://bugs.debian.org/913775 Mailing List  Third Party Advisory 
https://bugs.debian.org/913835 Mailing List  Third Party Advisory 
https://bugs.debian.org/913836 Mailing List  Third Party Advisory 
https://bugs.php.net/bug.php?id=76428 Exploit  Mailing List  Vendor Advisory 
https://bugs.php.net/bug.php?id=77153 Exploit  Mailing List  Vendor Advisory 
https://bugs.php.net/bug.php?id=77160 Permissions Required  Vendor Advisory 
https://git.php.net/?p=php-src.git;a=commit;h=e5bfea64c81ae34816479bb05d17cdffe45adddb Mailing List  Patch  Third Party Advisory 
https://github.com/Bo0oM/PHP_imap_open_exploit/blob/master/exploit.php Exploit  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2018/12/msg00006.html Mailing List  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2019/03/msg00001.html Third Party Advisory 
https://security.gentoo.org/glsa/202003-57
https://security.netapp.com/advisory/ntap-20181221-0004/ Third Party Advisory 
https://usn.ubuntu.com/4160-1/
https://www.debian.org/security/2018/dsa-4353 Third Party Advisory 
https://www.exploit-db.com/exploits/45914/ Exploit  Third Party Advisory  VDB Entry 
https://www.openwall.com/lists/oss-security/2018/11/22/3 Exploit  Mailing List  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-88 Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') cwe source acceptance level NIST  

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Change History

13 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-19518
NVD Published Date:
11/25/2018
NVD Last Modified:
08/24/2020
Source:
MITRE