RealNetworks Helix Universal Server 9.0.2.768 memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability was found in RealNetworks Helix Universal Server 9.0.2.768. It has been rated as critical. Affected by this issue is some unknown functionality. The manipulation leads to memory corruption. This vulnerability is traded as CVE-2002-1643. Furthermore, there is an exploit available.

Detailsinfo

A vulnerability was found in RealNetworks Helix Universal Server 9.0.2.768 and classified as critical. This issue affects an unknown function. 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 buffer overflows in RealNetworks Helix Universal Server 9.0 (9.0.2.768) allow remote attackers to execute arbitrary code via (1) a long Transport field in a SETUP RSTP request, (2) a DESCRIBE RSTP request with a long URL argument, or (3) two simultaneous HTTP GET requests with long arguments.

The bug was discovered 11/30/2002. The weakness was shared 12/20/2002 by Mark Litchfield with NGSSoftware as confirmed advisory (CERT.org). The advisory is shared at kb.cert.org. The identification of this vulnerability is CVE-2002-1643 since 03/28/2005. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available.

A public exploit has been developed by Johnny Cyberpunk and been published 5 months after the advisory. The exploit is available at exploit-db.com. It is declared as highly functional. The vulnerability was handled as a non-public zero-day exploit for at least 19 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 38184 (RealNetworks RealServer Buffer Overflow Vulnerability).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Attack attempts may be identified with Snort ID 12421. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 2334.

The vulnerability is also documented in the databases at X-Force (10915), Exploit-DB (23), SecurityFocus (BID 6458†), OSVDB (4579†) and Vulnerability Center (SBV-5390†). 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: 7.3

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

CVSSv2info

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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: 🔍
Access: Public
Status: Highly functional
Author: Johnny Cyberpunk
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

MetaSploit ID: describe.rb
MetaSploit Name: RealServer Describe Buffer Overflow
MetaSploit File: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍
Snort ID: 12421
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

ISS Proventia IPS: 🔍
PaloAlto IPS: 🔍

Timelineinfo

11/30/2002 🔍
12/19/2002 +19 days 🔍
12/20/2002 +1 days 🔍
12/20/2002 +0 days 🔍
03/04/2003 +74 days 🔍
04/30/2003 +57 days 🔍
04/30/2003 +0 days 🔍
03/23/2004 +328 days 🔍
09/13/2004 +173 days 🔍
03/28/2005 +196 days 🔍
07/31/2014 +3412 days 🔍
09/03/2025 +4052 days 🔍

Sourcesinfo

Vendor: realnetworks.com

Advisory: kb.cert.org
Researcher: Mark Litchfield
Organization: NGSSoftware
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2002-1643 (🔍)
GCVE (CVE): GCVE-0-2002-1643
GCVE (VulDB): GCVE-100-19229
CERT: 🔍
X-Force: 10915 - RealNetworks Helix Universal Server RTSP SETUP buffer overflow
SecurityFocus: 6458 - RealNetworks Helix Universal Server Long URI Dual HTTP Request Buffer Overflow Vulnerability
OSVDB: 4579 - RealNetworks Helix Universal Server DESCRIBE RTSP Overflow
Vulnerability Center: 5390 - Buffer Overflow in Real Networks RealServer / Helix Universal Server in RTSP Handling of Long URLs, High

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

Entryinfo

Created: 07/31/2014 17:14
Updated: 09/03/2025 10:28
Changes: 07/31/2014 17:14 (75), 05/24/2019 20:37 (10), 12/23/2024 06:28 (17), 09/03/2025 10:28 (2)
Complete: 🔍
Cache ID: 216:D1C:103

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