Citrix Presentation Server up to 4.0 ccprov.dll Print Request memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Citrix Presentation Server up to 4.0. It has been classified as critical. This issue affects some unknown processing in the library ccprov.dll. This manipulation as part of Print Request causes memory corruption. This vulnerability is registered as CVE-2007-0444. Furthermore, an exploit is available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability has been found in Citrix Presentation Server up to 4.0 (Connectivity Software) and classified as critical. Affected by this vulnerability is an unknown code block in the library ccprov.dll. The manipulation as part of a Print Request leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Stack-based buffer overflow in the print provider library (cpprov.dll) in Citrix Presentation Server 4.0, MetaFrame Presentation Server 3.0, and MetaFrame XP 1.0 allows local users and remote attackers to execute arbitrary code via long arguments to the (1) EnumPrintersW and (2) OpenPrinter functions.

The bug was discovered 01/24/2006. The weakness was published 01/25/2007 with ZDI (Website). It is possible to read the advisory at zerodayinitiative.com. This vulnerability is known as CVE-2007-0444 since 01/23/2007. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details and also a public exploit are known.

A public exploit has been developed in ANSI C. It is possible to download the exploit at securityfocus.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 364 days. During that time the estimated underground price was around $25k-$100k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 115903 (Citrix Presentation Server Arbitrary Code Execution).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at support.citrix.com. A possible mitigation has been published before and not just after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 3583. The filter is assigned to the category Vulnerabilities.

The vulnerability is also documented in the databases at X-Force (31751), SecurityFocus (BID 22217†), OSVDB (32958†), Secunia (SA23869†) and SecurityTracker (ID 1017553†). Similar entry is available at VDB-34764. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
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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
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
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Qualys ID: 🔍
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Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: support.citrix.com
TippingPoint: 🔍
TippingPoint Title: 🔍
TippingPoint Category: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

Timelineinfo

01/24/2006 🔍
01/23/2007 +364 days 🔍
01/23/2007 +0 days 🔍
01/24/2007 +1 days 🔍
01/24/2007 +0 days 🔍
01/24/2007 +0 days 🔍
01/24/2007 +0 days 🔍
01/25/2007 +1 days 🔍
01/25/2007 +0 days 🔍
01/25/2007 +0 days 🔍
01/26/2007 +0 days 🔍
02/04/2007 +9 days 🔍
06/14/2025 +6705 days 🔍

Sourcesinfo

Vendor: citrix.com

Advisory: zerodayinitiative.com
Researcher: http://www.zerodayinitiative.com
Organization: ZDI
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2007-0444 (🔍)
GCVE (CVE): GCVE-0-2007-0444
GCVE (VulDB): GCVE-100-2875
X-Force: 31751
SecurityFocus: 22217 - Citrix Presentation and MetaFrame Server Cpprov.DLL Stack Buffer Overflow Vulnerability
Secunia: 23869 - Citrix Presentation Server Print Provider Buffer Overflow Vulnerability, Moderately Critical
OSVDB: 32958 - Citrix Presentation Server Print Provider cpprov.dll Multiple Argument Remote Overflow
SecurityTracker: 1017553
SecuriTeam: securiteam.com
Vulnerability Center: 14185 - Citrix Presentation Server and MetaFrame Server Code Execution via RPC Requests, High
Vupen: ADV-2007-0328

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

Entryinfo

Created: 01/26/2007 13:17
Updated: 06/14/2025 08:58
Changes: 01/26/2007 13:17 (95), 07/14/2019 10:45 (2), 06/14/2025 08:58 (18)
Complete: 🔍
Cache ID: 216:C41:103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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