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Insecure Library Loading
Moderately critical

Cisco IOS Multiple Vulnerabilities

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Release Date:  2008-09-25    Last Update:  2008-10-10    Views:  15,653

Secunia Advisory SA31990

Where:

From remote

Impact:

Exposure of sensitive information, DoS, System access

Solution Status:

Vendor Patch

CVE Reference(s):

Description


Some vulnerabilities have been reported in Cisco IOS, which can be exploited by malicious people to disclose sensitive information, cause a DoS (Denial of Service), or to compromise a vulnerable system.

1) An unspecified error exists in the processing of SSL packets during the termination of an SSL session, which can potentially be exploited to crash an affected system.

2) Two unspecified errors exist within the processing of Protocol Independent Multicast (PIM) packets, which can be exploited to cause an affected device to reload.

3) Unspecified errors within the processing of segmented Skinny Call Control Protocol (SCCP) messages can be exploited to cause a Cisco IOS device to reload.

Successful exploitation requires that the device is configured with Network Address Translation (NAT) SCCP Fragmentation Support.

4) A memory leak in the processing of Session Initiation Protocol (SIP) messages can be exploited to cause a DoS for all voice services.

5) Multiple unspecified errors exist in the processing of SIP messages, which can be exploited to cause a reload of an affected device.

6) An unspecified error in the IOS Intrusion Prevention System (IPS) feature when processing certain IPS signatures that use the SERVICE.DNS engine can be exploited to cause a DoS via specially crafted network traffic.

7) A security issue exists in the processing of extended communities with Multi Protocol Label Switching (MPLS) Virtual Private Networks (VPN), which can lead to traffic leaking from one MPLS VPN to another.

This security issue does not affect Cisco IOS releases based on 12.1.

NOTE: This security issue was introduced with CSCee83237. Cisco IOS images that do not include CSCee83237 are reportedly not affected.

8) An unspecified error within the Multi Protocol Label Switching (MPLS) Forwarding Infrastructure (MFI) can be exploited to cause a DoS via specially crafted network packets.

Successful exploitation requires access to the MPLS network.

9) An unspecified error within the Application Inspection Control (AIC) can be exploited to cause a reload of an affected device via specially crafted HTTP packets.

10) An unspecified error in the processing of Layer 2 Tunneling Protocol (L2TP) packets can be exploited to cause an affected device to reload via a specially crafted L2TP packets.

Successful exploitation requires that the L2TP mgmt daemon process is running. This process may be enabled e.g. via Layer 2 virtual private networks (L2VPN), Layer 2 Tunnel Protocol Version 3 (L2TPv3), Stack Group Bidding Protocol (SGBP), or Cisco Virtual Private Dial-Up Networks (VPDN).

11) An unspecified error exists in the processing of IPC messages. This can be exploited to reload an affected device via a specially crafted UDP packet sent to port 1975.

This vulnerability is reported in Cisco 10000, uBR10012, and uBR7200 series devices.

12) A security issue is caused due to the device automatically enabling SNMP with a default community string, which can be exploited to gain control an affected system.

Successful exploitation requires that a device is configured for linecard redundancy.

This vulnerability affects Cisco uBR10012 series devices running IOS.


Solution:
Update to the fixed version (please see the vendor's advisories for details).

Provided and/or discovered by:
Reported by the vendor.

Original Advisory:
Cisco:
http://www.cisco.com/warp/public/707/cisco-sa-20080924-ssl.shtml
http://www.cisco.com/warp/public/707/cisco-sa-20080924-multicast.shtml
http://www.cisco.com/warp/public/707/cisco-sa-20080924-sccp.shtml
http://www.cisco.com/warp/public/707/cisco-sa-20080924-sip.shtml
http://www.cisco.com/warp/public/707/cisco-sa-20080924-iosips.shtml
http://www.cisco.com/warp/public/707/cisco-sa-20080924-vpn.shtml
http://www.cisco.com/warp/public/707/cisco-sa-20080924-mfi.shtml
http://www.cisco.com/warp/public/707/cisco-sa-20080924-iosfw.shtml
http://www.cisco.com/warp/public/707/cisco-sa-20080924-l2tp.shtml
http://www.cisco.com/warp/public/707/cisco-sa-20080924-ipc.shtml
http://www.cisco.com/warp/public/707/cisco-sa-20080924-ubr.shtml

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Cisco IOS Multiple Vulnerabilities

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