Oracle HTTP Server Web Listener resource management

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.
6.7$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Oracle HTTP Server. This issue affects some unknown processing of the component Web Listener. The manipulation results in resource management. This vulnerability was named CVE-2009-1955. In addition, an exploit is available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability classified as critical has been found in Oracle HTTP Server (Web Server) (the affected version unknown). Affected is an unknown part of the component Web Listener. The manipulation with an unknown input leads to a resource management vulnerability. CWE is classifying the issue as CWE-399. This is going to have an impact on availability. CVE summarizes:

The expat XML parser in the apr_xml_* interface in xml/apr_xml.c in Apache APR-util before 1.3.7, as used in the mod_dav and mod_dav_svn modules in the Apache HTTP Server, allows remote attackers to cause a denial of service (memory consumption) via a crafted XML document containing a large number of nested entity references, as demonstrated by a PROPFIND request, a similar issue to CVE-2003-1564.

The bug was discovered 06/04/2009. The weakness was presented 04/16/2013 as Oracle Critical Patch Update Advisory - April 2013 as not defined advisory (Website). The advisory is available at oracle.com. This vulnerability is traded as CVE-2009-1955 since 06/06/2009. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are unknown but a public exploit is available.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 3 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 46217 (SuSE9 Security Update : Apache 2 (YOU Patch Number 12613)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 118824 (HP-UX Apache-based Web Server Remote Denial of Service Vulnerability (HPSBUX02612)).

Applying a patch is able to eliminate this problem. 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 22805.

The vulnerability is also documented in the databases at X-Force (50994), Exploit-DB (8842), Tenable (46217), SecurityFocus (BID 35253†) and OSVDB (55057†). Further details are available at zdnet.com. See VDB-2393, VDB-2615, VDB-3489 and VDB-8322 for similar entries. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.7

VulDB Base Score: 7.5
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
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: 46217
Nessus Name: SuSE9 Security Update : Apache 2 (YOU Patch Number 12613)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 64259
OpenVAS Name: Slackware Advisory SSA:2009-167-02 apr-util
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
TippingPoint: 🔍
PaloAlto IPS: 🔍

Timelineinfo

06/01/2009 🔍
06/04/2009 +3 days 🔍
06/06/2009 +2 days 🔍
06/06/2009 +0 days 🔍
06/07/2009 +1 days 🔍
06/11/2009 +4 days 🔍
05/04/2010 +327 days 🔍
04/16/2013 +1078 days 🔍
04/16/2013 +0 days 🔍
04/17/2013 +1 days 🔍
11/30/2024 +4245 days 🔍

Sourcesinfo

Vendor: oracle.com

Advisory: Oracle Critical Patch Update Advisory - April 2013
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2009-1955 (🔍)
GCVE (CVE): GCVE-0-2009-1955
GCVE (VulDB): GCVE-100-8298

OVAL: 🔍
IAVM: 🔍

X-Force: 50994
SecurityFocus: 35253 - Apache APR-util 'xml/apr_xml.c' Denial of Service Vulnerability
Secunia: 35284 - Apache APR-util Library Multiple Vulnerabilities, Less Critical
OSVDB: 55057 - CVE-2009-1955 - Apache - APR-util - Denial of Service Issue
Vulnerability Center: 22504 - [cpuapr2013-1899555] Apache APR-util < 1.3.7 as Used in Apache HTTP Server Remote DoS via Crafted XML, High
Vupen: ADV-2009-1907

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

Entryinfo

Created: 04/17/2013 11:51
Updated: 11/30/2024 21:56
Changes: 04/17/2013 11:51 (91), 09/06/2019 07:28 (7), 11/30/2024 21:56 (19)
Complete: 🔍
Cache ID: 216:BBA:103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Might our Artificial Intelligence support you?

Check our Alexa App!