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)
EPSS: 0.060 (92.6th percentile) — read the EPSS interpretation.
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.
Affected products
- Microsoft Windows
- Php — versions 5.5.0, 5.5.1, 5.5.2
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com (vdb-entry, x_refsource_SECTRACK)
- secalert@redhat.com (vdb-entry, x_refsource_BID)
- secalert@redhat.com (mailing-list, x_refsource_MLIST)
- secalert@redhat.com (x_refsource_CONFIRM)
- secalert@redhat.com (x_refsource_CONFIRM, Exploit)
- secalert@redhat.com (x_refsource_CONFIRM)
- secalert@redhat.com (vendor-advisory, x_refsource_GENTOO)
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.