Blue Coat Systems filter service 3.2.32 Administration Interface k9filter.exe memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.4$0-$5k0.00

Summaryinfo

A vulnerability has been found in Blue Coat Systems filter service 3.2.32 and classified as critical. This issue affects some unknown processing of the file k9filter.exe of the component Administration Interface. The manipulation leads to memory corruption. This vulnerability is uniquely identified as CVE-2007-2952. No exploit exists.

Detailsinfo

A vulnerability was found in Blue Coat Systems filter service 3.2.32. It has been rated as very critical. This issue affects an unknown part of the file k9filter.exe of the component Administration Interface. 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 stack-based buffer overflows in the filter service (aka k9filter.exe) in Blue Coat K9 Web Protection 3.2.44 with Filter 3.2.32 allow (1) remote attackers to execute arbitrary code via a long HTTP Referer header to the K9 Web Protection Administration interface and (2) man-in-the-middle attackers to execute arbitrary code via an HTTP response with a long HTTP version field.

The weakness was disclosed 08/01/2008 by Carsten Eiram with Secunia Research (Website). It is possible to read the advisory at securityfocus.com. The identification of this vulnerability is CVE-2007-2952 since 05/31/2007. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/08/2025).

It is declared as proof-of-concept. The commercial vulnerability scanner Qualys is able to test this issue with plugin 115879 (Blue Coat K9 Web Protection Multiple Buffer Overflow Vulnerabilities).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (44124), SecurityFocus (BID 30464†), OSVDB (47264†), Secunia (SA25813†) and SecurityTracker (ID 1020587†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.4

VulDB Base Score: 10.0
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/31/2007 🔍
07/31/2008 +427 days 🔍
07/31/2008 +0 days 🔍
07/31/2008 +0 days 🔍
08/01/2008 +1 days 🔍
08/01/2008 +0 days 🔍
08/01/2008 +0 days 🔍
08/18/2008 +17 days 🔍
03/17/2015 +2402 days 🔍
06/08/2025 +3736 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Researcher: Carsten Eiram
Organization: Secunia Research
Status: Confirmed

CVE: CVE-2007-2952 (🔍)
GCVE (CVE): GCVE-0-2007-2952
GCVE (VulDB): GCVE-100-43487
X-Force: 44124
SecurityFocus: 30464 - Blue Coat K9 Web Protection Centralized Server HTTP Responses Buffer Overflow Vulnerability
Secunia: 25813 - Blue Coat K9 Web Protection Multiple Buffer Overflow Vulnerabilities, Highly Critical
OSVDB: 47264 - Blue Coat K9 Web Protection Filter Service (k9filter.exe) HTTP Version Response Handling Remote Overflow
SecurityTracker: 1020587
Vulnerability Center: 19213 - Blue Coat K9 Web Protection Buffer Overflow Vulnerability Allows Code Execution via Crafted HTTP, Critical
Vupen: ADV-2008-2263

Entryinfo

Created: 03/17/2015 12:19
Updated: 06/08/2025 17:05
Changes: 03/17/2015 12:19 (66), 08/15/2019 18:22 (5), 06/08/2025 17:05 (17)
Complete: 🔍
Cache ID: 216::103

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