PHP up to 4.3.10/5.0.3 pack memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

A vulnerability, which was classified as critical, has been found in PHP up to 4.3.10/5.0.3 (Programming Language Software). This issue affects the function pack. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Multiple integer handling errors in PHP before 4.3.10 allow attackers to bypass safe mode restrictions, cause a denial of service, or execute arbitrary code via (1) a negative offset value to the shmop_write function, (2) an "integer overflow/underflow" in the pack function, or (3) an "integer overflow/underflow" in the unpack function. NOTE: this issue was originally REJECTed by its CNA before publication, but that decision is in active dispute. This candidate may change significantly in the future as a result of further discussion.

The weakness was published 12/16/2004 by Stefan Esser with isec (Website). It is possible to read the advisory at php.net. The identification of this vulnerability is CVE-2004-1018 since 11/04/2004. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details as well as a public exploit are known.

The exploit is available at securityfocus.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 18091 (Mandrake Linux Security Advisory : php (MDKSA-2005:072)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Mandriva Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 12144 (PHP Multiple Remote Vulnerabilities).

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at php.net. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published 5 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (18515) and Tenable (18091). hardened-php.net is providing further details. Similar entries are available at 1060, 1059, 1056 and 1062.

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CPE 2.3info

CPE 2.2info

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CVSSv3info

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

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
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CVSSv2info

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Exploitinginfo

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

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
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Nessus ID: 18091
Nessus Name: Mandrake Linux Security Advisory : php (MDKSA-2005:072)
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Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
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Patch: php.net

Timelineinfo

11/04/2004 🔍
12/16/2004 +42 days 🔍
12/16/2004 +0 days 🔍
12/16/2004 +0 days 🔍
12/20/2004 +3 days 🔍
01/03/2005 +14 days 🔍
01/10/2005 +7 days 🔍
04/18/2005 +98 days 🔍
04/19/2005 +1 days 🔍
06/30/2019 +5185 days 🔍

Sourcesinfo

Product: php.org

Advisory: php.net
Researcher: Stefan Esser
Organization: isec
Status: Not defined
Confirmation: 🔍

CVE: CVE-2004-1018 (🔍)
OVAL: 🔍

X-Force: 18515
SecurityFocus: 12045 - PHP Shared Memory Module Offset Memory Corruption Vulnerability
Secunia: 13481 - PHP Multiple Vulnerabilities, Highly Critical
OSVDB: 12411 - PHP unpack() Function Heap Information Leak

scip Labs: https://www.scip.ch/en/?labs.20161013
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Entryinfo

Created: 01/03/2005 10:23
Updated: 06/30/2019 16:17
Changes: 01/03/2005 10:23 (87), 06/30/2019 16:17 (3)
Complete: 🔍

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