Apple Mac OS X up to 10.9.4 apache_mod_php symlink

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.6$0-$5k0.00

A vulnerability was found in Apple Mac OS X up to 10.9.4 (Operating System) and classified as critical. This issue affects an unknown code of the component apache_mod_php. The manipulation with an unknown input leads to a symlink vulnerability. Using CWE to declare the problem leads to CWE-61. The product, when opening a file or directory, does not sufficiently account for when the file is a symbolic link that resolves to a target outside of the intended control sphere. This could allow an attacker to cause the product to operate on unauthorized files. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

The SPL component in PHP before 5.4.30 and 5.5.x before 5.5.14 incorrectly anticipates that certain data structures will have the array data type after unserialization, which allows remote attackers to execute arbitrary code via a crafted string that triggers use of a Hashtable destructor, related to "type confusion" issues in (1) ArrayObject and (2) SPLObjectStorage.

The weakness was released 09/17/2014 as HT6443 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. The identification of this vulnerability is CVE-2014-3515 since 05/14/2014. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available.

A public exploit has been developed by SEC Consult and been published 3 years after the advisory. The exploit is available at exploit-db.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $5k-$25k. 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. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 16779.

The vulnerability is also documented in the databases at Tenable (78310) and Exploit-DB (40414). Entries connected to this vulnerability are available at 13383, 13384, 13386 and 13387.

Productinfo

Type

Vendor

Name

Version

License

Support

  • end of life

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Symlink
CWE: CWE-61 / CWE-59
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: SEC Consult
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Dayunlockunlockunlockunlock
Todayunlockunlockunlockunlock

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

OpenVAS ID: 702974
OpenVAS Name: Debian Security Advisory DSA 2974-1 (php5 - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
Exposure Time: 🔍
Exploit Delay Time: 🔍

Upgrade: Mac OS X 10.9.5
Patch: 88223c5245e9b470e1e6362bfd96829562ffe6ab
TippingPoint: 🔍
Fortigate IPS: 🔍

Timelineinfo

05/14/2014 🔍
06/26/2014 +43 days 🔍
06/26/2014 +0 days 🔍
06/29/2014 +3 days 🔍
07/09/2014 +10 days 🔍
07/14/2014 +5 days 🔍
09/17/2014 +65 days 🔍
09/17/2014 +0 days 🔍
09/23/2014 +6 days 🔍
09/22/2016 +730 days 🔍
09/22/2016 +0 days 🔍
02/20/2022 +1977 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT6443
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-3515 (🔍)
OVAL: 🔍
IAVM: 🔍

Vulnerability Center: 45153 - PHP <5.3.29, <5.4.30, <5.5.14 Remote Code Execution or DoS Vulnerability in SPL ArrayObject, High
SecurityFocus: 68237 - PHP unserialize() Function Type Confusion Security Vulnerability
Secunia: 59794 - Debian update for php5, Moderately Critical

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

Entryinfo

Created: 09/23/2014 13:06
Updated: 02/20/2022 14:16
Changes: 09/23/2014 13:06 (83), 05/31/2017 09:15 (11), 02/20/2022 14:13 (3), 02/20/2022 14:16 (1)
Complete: 🔍

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Might our Artificial Intelligence support you?

Check our Alexa App!