Feb
3
2010

3 new Cisco critical vulnerabilities

Recently, the The Cisco Product Security Incident Response Team (PSIRT) has published three important vulnerability advisories.

Multiple Vulnerabilities in Cisco Unified MeetingPlace
Multiple vulnerabilities exist in Cisco Unified MeetingPlace. This security advisory outlines the details of these vulnerabilities:

  • Insufficient validation of SQL commands
  • Unauthorized account creation
  • User and password enumeration in Cisco MeetingTime
  • Privilege escalation in Cisco MeetingTime

Vulnerable Products
Cisco Unified MeetingPlace versions 5, 6, and 7 are each affected by at least one of the vulnerabilities described in this document.

Details
This Security Advisory describes multiple distinct vulnerabilities in the MeetingPlace and MeetingTime products. These vulnerabilities are independent of each other.

  • Insufficient Validation of SQL Commands
    An unauthenticated user may be able to send SQL commands to manipulate the database that MeetingPlace uses to store information about server configuration, meetings, and users. These commands could be used to create, delete, or alter any of the information contained in the Cisco Unified MeetingPlace database.
  • Unauthorized Account Creation
    An unauthenticated user may be able to send a crafted URL to the internal interface of the Cisco Unified MeetingPlace web server to create a MeetingPlace user or administrator account.
  • User and Password Enumeration in Cisco MeetingTime
    The MeetingTime authentication sequence consists of a series of packets that are transmitted between the client and the Cisco Meeting Place Audio Server over TCP port 5001. An attacker may be able to alter the authentication sequence to access sensitive information in the user database including usernames and passwords.
  • Privilege Escalation in Cisco MeetingTime
    An attacker may be able to alter the packets in the MeetingTime authentication sequence to elevate the privileges of a normal user to an administrative user.

Impact
Successful exploitation of these vulnerabilities may result in a variety of conditions including: information disclosure, denial of service, privilege escalation, account creation, or alteration of configuration data.

Link: http://www.cisco.com/../advisory09186a0080b1490b.shtml

 

Cisco IOS XR Software SSH Denial of Service Vulnerability
The SSH server implementation in Cisco IOS XR Software contains a vulnerability that an unauthenticated, remote user could exploit to cause a denial of service condition. An attacker could trigger this vulnerability by sending a crafted SSH version 2 packet that may cause a new SSH connection handler process to crash. Repeated exploitation may cause each new SSH connection handler process to crash and lead to a significant amount of memory being consumed, which could introduce instability that may adversely impact other system functionality. During this event, the parent SSH daemon process will continue to function normally.

Vulnerable Products
This vulnerability affects Cisco IOS XR systems that are running an affected version of Cisco IOS XR Software and have the SSH server feature enabled.

Details
Cisco IOS XR Software is a member of the Cisco IOS Software family that uses a microkernel-based distributed operating system infrastructure. Cisco IOS XR Software runs on the Cisco CRS-1 Carrier Routing System, Cisco 12000 Series Routers, and Cisco ASR 9000 Series Aggregation Services Routers.

The SSH server implementation in Cisco IOS XR Software contains a vulnerability that an unauthenticated, remote user could exploit to cause a denial of service condition.

The vulnerability is triggered when a new SSH handler process handles a crafted SSH version 2 packet, which may cause the process to crash. During this event, a significant amount of memory may be consumed. Repeated exploitation may impact other system functionality, depending upon the size of the available memory and the duration of attack.

Although exploitation of this vulnerability does not require user authentication, the TCP three-way handshake must be completed, and some SSH protocol negotiation must occur.

Impact
Successful exploitation of the vulnerability described in this advisory could result in a crash of the SSH connection handler process. Repeated exploitation may impact other system functionality, depending upon the size of the available memory and the duration of attack.

Link: http://www.cisco.com/../advisory09186a0080b13512.shtml

 

CiscoWorks Internetwork Performance Monitor CORBA GIOP Overflow Vulnerability
CiscoWorks Internetwork Performance Monitor (IPM) versions 2.6 and earlier for Microsoft Windows operating systems contain a buffer overflow vulnerability that could allow a remote unauthenticated attacker to execute arbitrary code. There are no workarounds for this vulnerability.

Vulnerable Products
CiscoWorks IPM versions 2.6 and earlier for Windows operating systems are affected.

Details
CiscoWorks IPM is a troubleshooting application that gauges network response time and availability. CiscoWorks IPM is available as a component within the CiscoWorks LAN Management Solution (LMS) bundle. CiscoWorks IPM versions 2.6 and earlier for Windows contain a buffer overflow vulnerability when processing Common Object Request Broker Architecture (CORBA) GIOP requests. By sending a crafted CORBA GIOP request, a remote, unauthenticated attacker may be able to trigger the buffer overflow condition and execute arbitrary code with SYSTEM privileges on affected Windows systems. This vulnerability is documented in Cisco Bug ID CSCsv62350 and has been assigned the Common Vulnerabilities and Exposures (CVE) CVE-2010-0138.

Impact
Successful exploitation of the vulnerability may result in the ability to execute arbitrary code with SYSTEM privileges on affected Windows systems.

Link: http://www.cisco.com/../advisory09186a0080b1351d.shtml