JVN#73568461: PHP for Windows vulnerable to OS command injection

Overview

PHP for Windows contains an OS command injection vulnerability.

PHP for Windows contains an OS command injection due to a processing flaw in the escapeshellarg function.

Specifying a specially crafted parameter in the escapeshellarg function may result in an arbitrary OS command being executed.

Apply the patch
Apply the patch according to the infomration provided by the developer.

Vendor	Link
The PHP Group	Sec Bug #69646 OS command injection vulnerability in escapeshellarg
	PHP ChangeLog 5.6.10
	PHP ChangeLog 5.5.26
	PHP ChangeLog 5.4.42

Analyzed on 2015.07.17 (CVSS Base Metrics)

What is CVSS?

Measures	Severity			Description
Access Vector(AV)	Local (L)	Adjacent Network (A)	Network (N)	A vulnerability exploitable with network access means the vulnerable software is bound to the network stack and the attacker does not require local network access or local access. Such a vulnerability is often termed "remotely exploitable".
Access Complexity(AC)	High (H)	Medium (M)	Low (L)	The access conditions are somewhat specialized.
Authentication(Au)	Multiple (M)	Single (S)	None (N)	Authentication is not required to exploit the vulnerability.
Confidentiality Impact(C)	None (N)	Partial (P)	Complete (C)	There is considerable informational disclosure. Access to some system files is possible, but the attacker does not have control over what is obtained, or the scope of the loss is constrained.
Integrity Impact(I)	None (N)	Partial (P)	Complete (C)	Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.
Availability Impact(A)	None (N)	Partial (P)	Complete (C)	There is reduced performance or interruptions in resource availability.

Base Score:6.8

Masahiro Yamada reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.