Squid Proxy up to 2.5.STABLE10 storeBuffer denial of service

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.
7.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Squid Proxy up to 2.5.STABLE10. It has been rated as critical. This affects the function storeBuffer. This manipulation causes denial of service. The identification of this vulnerability is CVE-2005-2794. It is possible to initiate the attack remotely. There is no exploit available. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability classified as critical was found in Squid Proxy up to 2.5.STABLE10 (Firewall Software). Affected by this vulnerability is the function storeBuffer. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. The summary by CVE is:

store.c in Squid 2.5.STABLE10 and earlier allows remote attackers to cause a denial of service (crash) via certain aborted requests that trigger an assert error related to STORE_PENDING.

The bug was discovered 09/07/2005. The weakness was shared 09/07/2005 by Nickolay (Website). The advisory is shared at squid-cache.org. This vulnerability is known as CVE-2005-2794 since 09/06/2005. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

We expect the 0-day to have been worth approximately $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 19684 (Debian DSA-809-2 : squid - several vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 117841 (CentOS Security Update for Squid (CESA-2005:766)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at squid-cache.org.

The vulnerability is also documented in the databases at X-Force (22186), Tenable (19684), SecurityFocus (BID 14761†), OSVDB (19237†) and Secunia (SA16708†). The entries VDB-1025 and VDB-1722 are related to this item. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

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

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 19684
Nessus Name: Debian DSA-809-2 : squid - several vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 55308
OpenVAS Name: Debian Security Advisory DSA 809-1 (squid)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: squid-cache.org

Timelineinfo

09/01/2005 🔍
09/06/2005 +5 days 🔍
09/07/2005 +1 days 🔍
09/07/2005 +0 days 🔍
09/07/2005 +0 days 🔍
09/07/2005 +0 days 🔍
09/08/2005 +0 days 🔍
09/13/2005 +5 days 🔍
09/20/2005 +7 days 🔍
07/04/2019 +5035 days 🔍

Sourcesinfo

Vendor: squid-cache.org

Advisory: squid-cache.org
Researcher: Nickolay
Status: Not defined
Confirmation: 🔍

CVE: CVE-2005-2794 (🔍)
GCVE (CVE): GCVE-0-2005-2794
GCVE (VulDB): GCVE-100-1729

OVAL: 🔍

X-Force: 22186
SecurityFocus: 14761 - Squid Proxy Aborted Requests Remote Denial Of Service Vulnerability
Secunia: 16708 - Squid "storeBuffer()" Denial of Service Vulnerability, Moderately Critical
OSVDB: 19237 - Squid storeBuffer() Unspecified Remote DoS
Vulnerability Center: 9213 - Squid Denial of Service via Assert Error in Store.c, High

See also: 🔍

Entryinfo

Created: 09/08/2005 18:00
Updated: 07/04/2019 11:29
Changes: 09/08/2005 18:00 (90), 07/04/2019 11:29 (1)
Complete: 🔍
Cache ID: 216:7E0:103

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

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you know our Splunk app?

Download it now for free!