Microsoft Exchange 2000 Remote Procedure Call memory allocation

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Microsoft Exchange 2000. Affected by this issue is some unknown functionality of the component Remote Procedure Call. Performing a manipulation results in memory allocation. This vulnerability is known as CVE-2002-1873. No exploit is available.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Microsoft Exchange 2000 (Groupware Software). This affects some unknown processing of the component Remote Procedure Call. The manipulation with an unknown input leads to a memory allocation vulnerability. CWE is classifying the issue as CWE-789. The product allocates memory based on an untrusted, large size value, but it does not ensure that the size is within expected limits, allowing arbitrary amounts of memory to be allocated. This is going to have an impact on availability. The summary by CVE is:

Microsoft Exchange 2000, when used with Microsoft Remote Procedure Call (MSRPC), allows remote attackers to cause a denial of service (crash or memory consumption) via malformed MSRPC calls.

The weakness was published 12/31/2002 by Dave Aitel with Immunity (Website). It is possible to read the advisory at online.securityfocus.com. This vulnerability is uniquely identified as CVE-2002-1873 since 06/29/2005. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 74123 (Microsoft Exchange 2000 Multiple MSRPC Denial of Service 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 (7526), SecurityFocus (BID 5412†) and Vulnerability Center (SBV-2309†). Similar entry is available at VDB-18800. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Vendor

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
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 allocation
CWE: CWE-789 / CWE-400 / CWE-404
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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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
PaloAlto IPS: 🔍

Timelineinfo

07/26/2001 🔍
08/06/2002 +376 days 🔍
12/31/2002 +147 days 🔍
12/31/2002 +0 days 🔍
10/13/2003 +286 days 🔍
06/29/2005 +625 days 🔍
08/05/2014 +3324 days 🔍
09/01/2025 +4045 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: online.securityfocus.com⛔
Researcher: Dave Aitel
Organization: Immunity
Status: Not defined

CVE: CVE-2002-1873 (🔍)
GCVE (CVE): GCVE-0-2002-1873
GCVE (VulDB): GCVE-100-19515
X-Force: 7526
SecurityFocus: 5412 - Microsoft Exchange 2000 Multiple MSRPC Denial Of Service Vulnerabilities
Vulnerability Center: 2309 - DoS in Microsoft Exchange Server 2000 and 5.5 via Specially Crafted MSRPC Calls, High

See also: 🔍

Entryinfo

Created: 08/05/2014 10:37
Updated: 09/01/2025 15:20
Changes: 08/05/2014 10:37 (56), 05/15/2019 17:37 (6), 09/01/2025 15:20 (18)
Complete: 🔍
Cache ID: 216::103

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

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