Apple Mac OS X up to 10.9.4 apache_mod_php /tmp/phpglibccheck link following

CVSS Meta Temp Score
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CTI Interest Score
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4.9$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Apple Mac OS X up to 10.9.4. This issue affects some unknown processing of the file /tmp/phpglibccheck of the component apache_mod_php. The manipulation results in link following. This vulnerability is reported as CVE-2014-3981. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Apple Mac OS X up to 10.9.4 (Operating System). It has been classified as problematic. Affected is an unknown code block of the file /tmp/phpglibccheck of the component apache_mod_php. The manipulation with an unknown input leads to a link following vulnerability. CWE is classifying the issue as CWE-59. The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource. This is going to have an impact on integrity, and availability. CVE summarizes:

acinclude.m4, as used in the configure script in PHP 5.5.13 and earlier, allows local users to overwrite arbitrary files via a symlink attack on the /tmp/phpglibccheck file.

The weakness was disclosed 09/17/2014 as HT6443 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is traded as CVE-2014-3981 since 06/05/2014. The attack needs to be approached locally. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 78310 (Amazon Linux AMI : php54 (ALAS-2014-367)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Amazon Linux Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 185089 (HP-UX Apache Server Suite Multiple Vulnerabilities (HPSBUX03102)).

Upgrading to version 10.9.5 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.php.net. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (78310), SecurityFocus (BID 67837†) and Vulnerability Center (SBV-44791†). The entries VDB-13383, VDB-13384, VDB-13386 and VDB-13387 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.1
VulDB Meta Temp Score: 4.9

VulDB Base Score: 5.1
VulDB Temp Score: 4.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Link following
CWE: CWE-59
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 78310
Nessus Name: Amazon Linux AMI : php54 (ALAS-2014-367)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 103255
OpenVAS Name: PHP Symlink Attack Vulnerability (Windows)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
Exposure Time: 🔍

Upgrade: Mac OS X 10.9.5
Patch: git.php.net

Timelineinfo

06/04/2014 🔍
06/05/2014 +1 days 🔍
06/05/2014 +0 days 🔍
06/08/2014 +3 days 🔍
06/08/2014 +0 days 🔍
09/17/2014 +101 days 🔍
09/17/2014 +0 days 🔍
09/23/2014 +6 days 🔍
02/20/2022 +2707 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT6443
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-3981 (🔍)
GCVE (CVE): GCVE-0-2014-3981
GCVE (VulDB): GCVE-100-67632

OVAL: 🔍
IAVM: 🔍

SecurityFocus: 67837 - PHP '/tmp/phpglibccheck' Symlink Vulnerability
Vulnerability Center: 44791 - PHP <5.3.29, <5.4.30, <5.5.14 Local Symlink Attack in /tmp/phpglibccheck, Low

scip Labs: https://www.scip.ch/en/?labs.20150108
See also: 🔍

Entryinfo

Created: 09/23/2014 13:06
Updated: 02/20/2022 14:19
Changes: 09/23/2014 13:06 (75), 05/30/2017 09:12 (6), 02/20/2022 14:19 (3)
Complete: 🔍
Cache ID: 216::103

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