XMLSoft libxml2 up to 2.6.5 nanohttp/nanoftp memory corruption

EntryHistoryDiffjsonxmlCTI

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-$5k	0.00

A vulnerability classified as critical has been found in XMLSoft libxml2 up to 2.6.5 (Document Processing Software). This affects an unknown functionality of the component nanohttp/nanoftp. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Buffer overflow in the (1) nanohttp or (2) nanoftp modules in XMLSoft Libxml 2 (Libxml2) 2.6.0 through 2.6.5 allow remote attackers to execute arbitrary code via a long URL.

The bug was discovered 02/24/2004. The weakness was published 02/12/2004 by Yuuichi Teranishi as confirmed advisory (CERT.org). The advisory is shared at kb.cert.org. This vulnerability is uniquely identified as CVE-2004-0110. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are unknown but a public exploit is available.

A public exploit has been developed by infamous41md and been published 10 months after the advisory. The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 14118 (Mandrake Linux Security Advisory : libxml2 (MDKSA-2004:018)), 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 117947 (CentOS Security Update for libxml (CESA-2004:650)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 3 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (15302), Tenable (14118) and Exploit-DB (601). Similar entries are available at 24000, 82189 and 82197.

Productinfo

Type

Document Processing Software

Vendor

XMLSoft

Name

libxml2

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

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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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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: infamous41md
Download: 🔍

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Nessus ID: 14118
Nessus Name: Mandrake Linux Security Advisory : libxml2 (MDKSA-2004:018)
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OpenVAS ID: 53153
OpenVAS Name: Debian Security Advisory DSA 455-1 (libxml, libxml2)
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Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
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Timelineinfo

02/12/2004 🔍
02/12/2004 +0 days 🔍
02/24/2004 +12 days 🔍
02/24/2004 +0 days 🔍
02/24/2004 +0 days 🔍
02/24/2004 +0 days 🔍
03/03/2004 +7 days 🔍
03/15/2004 +12 days 🔍
07/31/2004 +138 days 🔍
10/26/2004 +87 days 🔍
10/26/2004 +0 days 🔍
05/06/2009 +1653 days 🔍
10/15/2014 +1988 days 🔍
09/03/2019 +1784 days 🔍

Sourcesinfo

Advisory: kb.cert.org
Researcher: Yuuichi Teranishi
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2004-0110 (🔍)
OVAL: 🔍

X-Force: 15302
Vulnerability Center: 21919 - XMLSoft Libxml2 2.6.0 Through 2.6.5 Buffer Overflow Remote Arbitrary Code Execution via a Long URL, High
SecurityFocus: 9718 - libxml2 Remote URI Parsing Buffer Overrun Vulnerability
Secunia: 10958 - Libxml2 URI Parsing Buffer Overflow Vulnerabilities, Moderately Critical
OSVDB: 4033 - libxml2 nanoftp URI Parsing Overflow

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

Created: 10/15/2014 15:30
Updated: 09/03/2019 07:52
Changes: 10/15/2014 15:30 (93), 09/03/2019 07:52 (3)
Complete: 🔍