VDB-49178 · CVE-2009-2622 · BID 35812

Squid Proxy up to 3.1.0.11 HttpMsg.cc input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.0$0-$5k0.00

A vulnerability, which was classified as problematic, has been found in Squid Proxy up to 3.1.0.11 (Firewall Software). Affected by this issue is an unknown part of the file HttpMsg.cc. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is availability. CVE summarizes:

Squid 3.0 through 3.0.STABLE16 and 3.1 through 3.1.0.11 allows remote attackers to cause a denial of service via malformed requests including (1) "missing or mismatched protocol identifier," (2) missing or negative status value," (3) "missing version," or (4) "missing or invalid status number," related to (a) HttpMsg.cc and (b) HttpReply.cc.

The weakness was presented 07/28/2009 by Rob Middleton with Codenomicon (Website). The advisory is available at squid-cache.org. This vulnerability is handled as CVE-2009-2622 since 07/28/2009. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 08/13/2021).

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 40627 (Fedora 11 : squid-3.0.STABLE18-1.fc11 (2009-8324)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 116562 (Fedora Update for Squid (FEDORA-2009-8324, FEDORA-2009-8327)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 8677.

The vulnerability is also documented in the vulnerability database at Tenable (40627). See VDB-49177 for similar entry.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.0

VulDB Base Score: 5.3
VulDB Temp Score: 5.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 40627
Nessus Name: Fedora 11 : squid-3.0.STABLE18-1.fc11 (2009-8324)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 64636
OpenVAS Name: Debian Security Advisory DSA 1843-2 (squid3)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
TippingPoint: 🔍
Fortigate IPS: 🔍

Timelineinfo

07/27/2009 🔍
07/27/2009 +0 days 🔍
07/27/2009 +0 days 🔍
07/28/2009 +1 days 🔍
07/28/2009 +0 days 🔍
07/28/2009 +0 days 🔍
07/28/2009 +0 days 🔍
07/29/2009 +1 days 🔍
03/18/2015 +2058 days 🔍
08/13/2021 +2340 days 🔍

Sourcesinfo

Vendor: squid-cache.org

Advisory: squid-cache.org
Researcher: Rob Middleton
Organization: Codenomicon
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2009-2622 (🔍)
SecurityTracker: 1022607 - Squid Request and Response Processing Bugs Let Remote Users Deny Service
Vulnerability Center: 22991 - Squid 3.1.0.11 and Prior Remote DoS Vulnerability via Malformed Requests, High
SecurityFocus: 35812 - Squid Multiple Remote Denial of Service Vulnerabilities
Secunia: 36007 - Squid Multiple Denial of Service Vulnerabilities, Moderately Critical
Vupen: ADV-2009-2013

See also: 🔍

Entryinfo

Created: 03/18/2015 15:15
Updated: 08/13/2021 07:13
Changes: 03/18/2015 15:15 (64), 02/12/2017 12:58 (19), 08/13/2021 07:13 (3)
Complete: 🔍
Cache ID: 3:F56:103

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