Is CVE-2018-19518 actively exploited?

CVE-2018-19518 has no public evidence of in-the-wild exploitation as of 2024-11-21.

What is the CVSS score for CVE-2018-19518?

CVE-2018-19518 has a CVSS score of 7.5 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2018-19518?

Patch guidance is available from php security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2018-19518.

Fix CVE-2018-19518 - HIGH php php

Q: Which products are affected by CVE-2018-19518?

10 products: php php, php php, php php, php php, debian debian linux, and 5 more.

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OS commands if the IMAP server name is untrusted input (e.g., entered by a user of a web application) and if rsh has been replaced by a program with different argument semantics.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

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: high
Privileges: low
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-88

Metadata

Primary Vendor: PHP
Published: 11/25/2018
Last Modified: 11/21/2024
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

php : phpphp : phpphp : phpphp : phpdebian : debian_linuxdebian : debian_linuxuw-imap_project : uw-imapcanonical : ubuntu_linuxcanonical : ubuntu_linuxcanonical : ubuntu_linux

Remediation Guidance

Executive Summary

View on NIST NVD