RealNetworks RealServer G2 1.0 Administration Utility Username/Password memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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9.0$0-$5k0.00

A vulnerability was found in RealNetworks RealServer G2 1.0 and classified as critical. This issue affects an unknown function of the component Administration Utility. The manipulation of the argument Username/Password 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:

Buffer overflow in RealNetworks RealServer administration utility allows remote attackers to execute arbitrary commands via a long username and password.

The weakness was published 11/04/1999 as not defined advisory (Website). The advisory is shared at service.real.com. The identification of this vulnerability is CVE-1999-0896. 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 as well as a public exploit are known.

A public exploit has been developed in Assembler. The exploit is available at securityfocus.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 10200 (RealServer G2 Malformed Telnet Data Remote Overflow), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gain a shell remotely and running in the context r.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (3448) and Tenable (10200). Similar entry is available at 14060.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.0

VulDB Base Score: 10.0
VulDB Temp Score: 9.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

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

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Nessus ID: 10200
Nessus Name: RealServer G2 Malformed Telnet Data Remote Overflow
Nessus File: 🔍
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Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/04/1999 🔍
11/04/1999 +0 days 🔍
11/04/1999 +0 days 🔍
11/04/1999 +0 days 🔍
11/04/1999 +0 days 🔍
10/08/2002 +1069 days 🔍
06/22/2014 +4275 days 🔍
06/23/2021 +2558 days 🔍

Sourcesinfo

Vendor: realnetworks.com

Advisory: service.real.com
Status: Not defined

CVE: CVE-1999-0896 (🔍)
X-Force: 3448
Vulnerability Center: 41 - Buffer Overflow in RealNetworks RealServer via Long Username and Password, High
SecurityFocus: 767 - Real Server Administrator Port Buffer Overflow Vulnerability

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

Entryinfo

Created: 06/22/2014 14:32
Updated: 06/23/2021 10:07
Changes: 06/22/2014 14:32 (70), 05/04/2019 18:05 (1), 06/23/2021 10:07 (2)
Complete: 🔍

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