RCE in Microsoft Windows
CVE-2015-4642
The escapeshellarg function in ext/standard/exec.c in PHP before 5.4.42, 5.5.x before 5.5.26, and 5.6.x before 5.6.10 on Windows allows remote attackers to execute arbitrary OS commands via a crafted string to an application that accepts command-line arguments for a call to the PHP system function.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.060 (93.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 93rd percentile — 93.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.060 · newest: 0.060 · change: 0.000
Affected products
- Microsoft Windows
- PHP — versions 5.5.0, 5.5.1, 5.5.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securitytracker.com/id/1032709 (vdb-entry)
- www.securityfocus.com/bid/75290 (vdb-entry)
- openwall.com/lists/oss-security/2015/06/18/6 (mailing-list)
- php.net/ChangeLog-5.php
- bugs.php.net/bug.php (Exploit)
- git.php.net/
- security.gentoo.org/glsa/201606-10 (vendor-advisory)
Frequently asked questions
- What is CVE-2015-4642?
- CVE-2015-4642 is a critical-severity vulnerability in Microsoft Windows, classified under OS Command Injection. CVSS score: 9.8/10. Published 2016-05-16.
- How severe is CVE-2015-4642?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2015-4642 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.