Vulnerability Details : CVE-2015-4026
The pcntl_exec implementation in PHP before 5.4.41, 5.5.x before 5.5.25, and 5.6.x before 5.6.9 truncates a pathname upon encountering a \x00 character, which might allow remote attackers to bypass intended extension restrictions and execute files with unexpected names via a crafted first argument. NOTE: this vulnerability exists because of an incomplete fix for CVE-2006-7243.
Products affected by CVE-2015-4026
- cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_hpc_node:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_eus:7.1:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_hpc_node_eus:7.1:*:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.0:alpha1:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.0:alpha2:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.0:alpha4:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.0:rc1:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.0:alpha6:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.0:beta1:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.0:beta2:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.0:beta3:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.0:alpha3:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.0:alpha5:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.0:beta4:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.0:rc2:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.5:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.6:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.1:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.3:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.2:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.4:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.0:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.0:alpha4:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.0:alpha5:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.0:beta2:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.0:alpha2:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.0:alpha3:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.2:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.7:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.8:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.0:alpha1:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.5:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.6:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.0:beta1:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.0:beta3:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.0:beta4:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.3:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.4:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.8:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.7:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.11:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.10:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.9:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.12:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.13:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.14:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.18:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.19:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.20:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.21:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.22:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.24:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.23:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.4.39:*:*:*:*:*:*:*
Threat overview for CVE-2015-4026
Top countries where our scanners detected CVE-2015-4026
Top open port discovered on systems with this issue
80
IPs affected by CVE-2015-4026 630,402
Threat actors abusing to this issue?
Yes
Find out if you* are
affected by CVE-2015-4026!
*Directly or indirectly through your vendors, service providers and 3rd parties.
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attack surface intelligence
from SecurityScorecard.
Exploit prediction scoring system (EPSS) score for CVE-2015-4026
3.28%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 91 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2015-4026
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST |
CWE ids for CVE-2015-4026
-
Assigned by: nvd@nist.gov (Primary)
References for CVE-2015-4026
-
http://www.securitytracker.com/id/1032431
PHP Functions That Permit Null Characters in Path Values May Let Remote Users Bypass Access Controls - SecurityTracker
-
http://www.securityfocus.com/bid/75056
PHP 'pcnt_exec()' Function Null Character Security Bypass Vulnerability
-
https://security.gentoo.org/glsa/201606-10
PHP: Multiple vulnerabilities (GLSA 201606-10) — Gentoo security
-
http://lists.opensuse.org/opensuse-updates/2015-06/msg00002.html
openSUSE-SU-2015:0993-1: moderate: Security update for php5
-
http://rhn.redhat.com/errata/RHSA-2015-1219.html
RHSA-2015:1219 - Security Advisory - Red Hat Customer Portal
-
https://support.apple.com/kb/HT205031
About the security content of OS X Yosemite v10.10.5 and Security Update 2015-006 - Apple Support
-
http://rhn.redhat.com/errata/RHSA-2015-1218.html
RHSA-2015:1218 - Security Advisory - Red Hat Customer Portal
-
http://rhn.redhat.com/errata/RHSA-2015-1186.html
RHSA-2015:1186 - Security Advisory - Red Hat Customer Portal
-
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
Oracle Linux Bulletin - January 2016
-
https://bugs.php.net/bug.php?id=68598
PHP :: Sec Bug #68598 :: pcntl_exec() should not allow null charExploit;Patch
-
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158616.html
[SECURITY] Fedora 22 Update: php-5.6.9-1.fc22
-
http://rhn.redhat.com/errata/RHSA-2015-1187.html
RHSA-2015:1187 - Security Advisory - Red Hat Customer Portal
-
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/159031.html
[SECURITY] Fedora 20 Update: php-5.5.25-1.fc20
-
http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html
Apple - Lists.apple.com
-
http://rhn.redhat.com/errata/RHSA-2015-1135.html
RHSA-2015:1135 - Security Advisory - Red Hat Customer Portal
-
http://www.debian.org/security/2015/dsa-3280
Debian -- Security Information -- DSA-3280-1 php5
-
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158915.html
[SECURITY] Fedora 21 Update: php-5.6.9-1.fc21
-
http://php.net/ChangeLog-5.php
PHP: PHP 5 ChangeLogPatch
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