PHP up to 7.0.0 Zend/zend_execute_API.c zend_throw_or_error format string

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.
9.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in PHP up to 7.0.0. Affected is the function zend_throw_or_error of the file Zend/zend_execute_API.c. The manipulation leads to format string. This vulnerability is traded as CVE-2015-8617. It is possible to launch the attack remotely. Furthermore, there is an exploit available. It is recommended to upgrade the affected component. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Detailsinfo

A vulnerability, which was classified as very critical, has been found in PHP up to 7.0.0 (Programming Language Software). This issue affects the function zend_throw_or_error of the file Zend/zend_execute_API.c. The manipulation with an unknown input leads to a format string vulnerability. Using CWE to declare the problem leads to CWE-134. The product uses a function that accepts a format string as an argument, but the format string originates from an external source. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Format string vulnerability in the zend_throw_or_error function in Zend/zend_execute_API.c in PHP 7.x before 7.0.1 allows remote attackers to execute arbitrary code via format string specifiers in a string that is misused as a class name, leading to incorrect error handling.

The weakness was disclosed 01/19/2016 (Website). It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2015-8617 since 12/22/2015. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details as well as a exploit are known. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 12/21/2024).

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 $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 87599 (PHP 7.0.x < 7.0.1 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 11562 (PHP Class Name Error Message Format String Vulnerability).

Upgrading to version 7.0.1 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (87599) and SecurityFocus (BID 79655†). The entries VDB-80326, VDB-83183, VDB-83184 and VDB-83185 are pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.3

VulDB Base Score: 9.8
VulDB Temp Score: 8.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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

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

NVD Base Score: 🔍

Exploitinginfo

Class: Format string
CWE: CWE-134 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Dayunlockunlockunlockunlock
Todayunlockunlockunlockunlock

Nessus ID: 87599
Nessus Name: PHP 7.0.x < 7.0.1 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 103043
OpenVAS Name: PHP Multiple Vulnerabilities - 02 - Mar16 (Windows)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: PHP 7.0.1
Patch: github.com

Timelineinfo

12/17/2015 🔍
12/22/2015 +5 days 🔍
12/22/2015 +0 days 🔍
01/19/2016 +28 days 🔍
01/19/2016 +0 days 🔍
01/20/2016 +1 days 🔍
12/21/2024 +3258 days 🔍

Sourcesinfo

Product: php.org

Advisory: 71105
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-8617 (🔍)
GCVE (CVE): GCVE-0-2015-8617
GCVE (VulDB): GCVE-100-80327
SecurityFocus: 79655
SecurityTracker: 1034543

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 01/20/2016 10:07
Updated: 12/21/2024 13:54
Changes: 01/20/2016 10:07 (60), 06/25/2018 09:15 (14), 07/03/2022 16:17 (5), 07/03/2022 16:24 (1), 11/08/2024 06:42 (24), 12/21/2024 13:54 (2)
Complete: 🔍
Cache ID: 216:DB8:103

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you know our Splunk app?

Download it now for free!