ISS Proventia/RealSecure PAM SMB Reassembler memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as very critical, has been found in ISS Proventia and RealSecure. Impacted is an unknown function of the component PAM SMB Reassembler. The manipulation leads to memory corruption. This vulnerability is listed as CVE-2004-0193. The attack may be initiated remotely. There is no available exploit. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability, which was classified as very critical, has been found in ISS Proventia and RealSecure (affected version unknown). This issue affects an unknown functionality of the component PAM SMB Reassembler. 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:

Heap-based buffer overflow in the ISS Protocol Analysis Module (PAM), as used in certain versions of RealSecure Network 7.0 and Server Sensor 7.0, Proventia A, G, and M Series, RealSecure Desktop 7.0 and 3.6, RealSecure Guard 3.6, RealSecure Sentry 3.6, BlackICE PC Protection 3.6, and BlackICE Server Protection 3.6, allows remote attackers to execute arbitrary code via an SMB packet containing an authentication request with a long username.

The weakness was presented 02/26/2004 by Jack Barnaby with eEye Digital Security (Website). The advisory is shared at xforce.iss.net. The identification of this vulnerability is CVE-2004-0193. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/13/2025).

We expect the 0-day to have been worth approximately $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 12114 (ISS BlackICE Multiple Remote Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 34019 (ISS Protocol Analysis Module SMB Parsing Heap Overflow Vulnerability).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at iss.net. A possible mitigation has been published immediately after the disclosure of the vulnerability. Attack attempts may be identified with Snort ID 2401. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 2701.

The vulnerability is also documented in the databases at X-Force (15207), Tenable (12114), SecurityFocus (BID 9752†), OSVDB (4702†) and Secunia (SA10988†). snia.org is providing further details. See VDB-496, VDB-15702, VDB-18892 and VDB-18893 for similar entries. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 12114
Nessus Name: ISS BlackICE Multiple Remote Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: iss.net

Snort ID: 2401
Snort Message: NETBIOS SMB Session Setup andx username overflow attempt
Snort Class: 🔍
TippingPoint: 🔍
SourceFire IPS: 🔍

Timelineinfo

02/26/2004 🔍
02/26/2004 +0 days 🔍
02/26/2004 +0 days 🔍
02/26/2004 +0 days 🔍
02/27/2004 +1 days 🔍
02/29/2004 +2 days 🔍
03/01/2004 +1 days 🔍
03/15/2004 +14 days 🔍
03/19/2004 +4 days 🔍
03/31/2004 +11 days 🔍
07/13/2025 +7774 days 🔍

Sourcesinfo

Advisory: xforce.iss.net
Researcher: Jack Barnaby
Organization: eEye Digital Security
Status: Confirmed

CVE: CVE-2004-0193 (🔍)
GCVE (CVE): GCVE-0-2004-0193
GCVE (VulDB): GCVE-100-533
CERT: 🔍
X-Force: 15207 - PAM component buffer overflow when parsing SMB protocol, High Risk
SecurityFocus: 9752 - Internet Security Systems Protocol Analysis Module SMB Parsing Heap Overflow Vulnerability
Secunia: 10988 - ISS Multiple Products SMB Packet Handling Buffer Overflow Vulnerability, Moderately Critical
OSVDB: 4702 - RealSecure/BlackICE PAM Module SMB Packet Overflow
Vulnerability Center: 3868 - Buffer Overflow in ISS Products SMB Protocol, High

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 03/01/2004 10:18
Updated: 07/13/2025 18:15
Changes: 03/01/2004 10:18 (88), 06/27/2019 18:58 (4), 12/15/2024 21:01 (19), 07/13/2025 18:15 (2)
Complete: 🔍
Cache ID: 216:D64:103

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