RealNetworks Helix Server prior 12.0.0 input validation

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.8	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in RealNetworks Helix Server. Affected by this issue is some unknown functionality. Executing a manipulation can lead to input validation. This vulnerability is tracked as CVE-2009-2534. Moreover, an exploit is present. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in RealNetworks Helix Server and classified as problematic. This vulnerability affects some unknown functionality. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect availability. CVE summarizes:

RealNetworks Helix Server and Helix Mobile Server before 13.0.0 allow remote attackers to cause a denial of service (daemon crash) via an RTSP SETUP request that (1) specifies the / URI or (2) lacks a / character in the URI.

The weakness was disclosed 07/14/2009 by CORE Security with CORE Security Technologies (Website). The advisory is shared for download at vupen.com. This vulnerability was named CVE-2009-2534 since 07/17/2009. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are unknown but a public exploit is available.

A public exploit has been developed by Core Security in Python and been published immediately after the advisory. It is possible to download the exploit at securityfocus.com. It is declared as proof-of-concept. As 0-day the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 40350 (RealNetworks Helix Server < 13.0.0 Multiple Remote DoS), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Misc..

Upgrading to version 12.0.0 eliminates this vulnerability. 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 8672.

The vulnerability is also documented in the databases at X-Force (51843), Exploit-DB (9198), Tenable (40350), SecurityFocus (BID 35732†) and OSVDB (55982†). The entry VDB-49071 is pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

RealNetworks

Name

Helix Server

License

free

Website

Vendor: https://www.realnetworks.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 40350
Nessus Name: RealNetworks Helix Server < 13.0.0 Multiple Remote DoS
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Upgrade: Helix Server 12.0.0
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

ISS Proventia IPS: 🔍
PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

07/14/2009 🔍
07/14/2009 +0 days 🔍
07/14/2009 +0 days 🔍
07/14/2009 +0 days 🔍
07/14/2009 +0 days 🔍
07/17/2009 +2 days 🔍
07/17/2009 +0 days 🔍
07/20/2009 +3 days 🔍
07/20/2009 +0 days 🔍
07/28/2009 +7 days 🔍
03/18/2015 +2059 days 🔍
12/07/2024 +3552 days 🔍

Sourcesinfo

Vendor: realnetworks.com

Advisory: vupen.com⛔
Researcher: CORE Security
Organization: CORE Security Technologies
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2009-2534 (🔍)
GCVE (CVE): GCVE-0-2009-2534
GCVE (VulDB): GCVE-100-49072
X-Force: 51843
SecurityFocus: 35732 - RealNetworks Helix Server 'SETUP' Remote Denial of Service Vulnerability
OSVDB: 55982 - RealNetworks Helix Server SETUP Request Handling Searched 0x2F Character Remote DoS
Vulnerability Center: 22973 - Real Networks Helix Server and Helix Mobile Server \x3C 13.0.0 Remote DoS via an RTSP SETUP Request, Medium
Vupen: ADV-2009-1947

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

Entryinfo

Created: 03/18/2015 15:15
Updated: 12/07/2024 02:28
Changes: 03/18/2015 15:15 (65), 02/12/2017 12:54 (20), 08/12/2021 16:08 (3), 12/07/2024 02:28 (15)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.