PHP 5.2.3 Tidy Extension tidy_parse_string memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.2$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in PHP 5.2.3. Affected is the function tidy_parse_string of the component Tidy Extension. This manipulation causes memory corruption. This vulnerability is registered as CVE-2007-3294. Furthermore, an exploit is available. It is preferable to disable the affected component.

Detailsinfo

A vulnerability has been found in PHP 5.2.3 (Programming Language Software) and classified as critical. Affected by this vulnerability is the function tidy_parse_string of the component Tidy Extension. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Multiple buffer overflows in libtidy, as used in the Tidy extension for PHP 5.2.3 and possibly other products, allow context-dependent attackers to execute arbitrary code via (1) a long second argument to the tidy_parse_string function or (2) an unspecified vector to the tidy_repair_string function. NOTE: this might only be an issue in environments where vsnprintf is implemented as a wrapper for vsprintf.

The weakness was published 06/21/2007 by rgod (Website). The advisory is shared at exploit-db.com. This vulnerability is known as CVE-2007-3294 since 06/20/2007. The attack can only be initiated within the local network. The exploitation doesn't need any form of authentication. Technical details and also a public exploit are known.

A public exploit has been developed by rgod and been published before and not just after the advisory. It is possible to download the exploit at exploit-db.com. It is declared as functional. The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 25971 (PHP < 5.2.4 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses.

The best possible mitigation is suggested to be disabling the affected component.

The vulnerability is also documented in the databases at X-Force (34931), Exploit-DB (4080), Tenable (25971), SecurityFocus (BID 24527†) and OSVDB (36853†). Similar entries are available at VDB-35567, VDB-38254, VDB-38011 and VDB-37828. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.3
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Functional
Author: rgod
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 25971
Nessus Name: PHP < 5.2.4 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 110184
OpenVAS Name: PHP version smaller than 5.2.4
OpenVAS File: 🔍
OpenVAS Family: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Disable
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/19/2007 🔍
06/19/2007 +0 days 🔍
06/19/2007 +0 days 🔍
06/19/2007 +0 days 🔍
06/20/2007 +1 days 🔍
06/20/2007 +0 days 🔍
06/21/2007 +1 days 🔍
06/26/2007 +5 days 🔍
07/02/2007 +5 days 🔍
11/18/2012 +1966 days 🔍
09/22/2024 +4326 days 🔍

Sourcesinfo

Product: php.org

Advisory: exploit-db.com
Researcher: rgod
Status: Confirmed

CVE: CVE-2007-3294 (🔍)
GCVE (CVE): GCVE-0-2007-3294
GCVE (VulDB): GCVE-100-3145
X-Force: 34931 - Tidy extension for PHP tidy_parse_string and tidy_repair_string buffer overflow, High Risk
SecurityFocus: 24527 - Tidylib for PHP Library Remote Buffer Overflow Vulnerability
Secunia: 25735 - PHP Multiple Extensions Buffer Overflow Vulnerabilities, Less Critical
OSVDB: 36853 - PHP Tidy Extension (libtidy) Multiple Functions Overflow
Vulnerability Center: 37281 - PHP 5.2.3 Multiple Remote Arbitrary Code Execution Vulnerabilities, High

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

Entryinfo

Created: 07/02/2007 18:22
Updated: 09/22/2024 02:26
Changes: 07/02/2007 18:22 (89), 04/21/2017 13:17 (4), 03/15/2021 15:01 (3), 09/22/2024 02:26 (15)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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