Executive Summary
| Summary | |
|---|---|
| Title | Cisco IOS XR Software Border Gateway Protocol Vulnerability |
| Informations | |||
|---|---|---|---|
| Name | cisco-sa-20100827-bgp | First vendor Publication | 2010-08-27 |
| Vendor | Cisco | Last vendor Modification | 2010-08-27 |
| Severity (Vendor) | N/A | Revision | 1.0 |
Security-Database Scoring CVSS v3
| Cvss vector : N/A | |||
|---|---|---|---|
| Overall CVSS Score | NA | ||
| Base Score | NA | Environmental Score | NA |
| impact SubScore | NA | Temporal Score | NA |
| Exploitabality Sub Score | NA | ||
| Calculate full CVSS 3.0 Vectors scores | |||
Security-Database Scoring CVSS v2
| Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:P) | |||
|---|---|---|---|
| Cvss Base Score | 5 | Attack Range | Network |
| Cvss Impact Score | 2.9 | Attack Complexity | Low |
| Cvss Expoit Score | 10 | Authentication | None Required |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| Cisco IOS XR Software contains a vulnerability in the Border Gateway Protocol (BGP) feature. The vulnerability manifests itself when a BGP peer announces a prefix with a specific, valid but unrecognized transitive attribute. On receipt of this prefix, the Cisco IOS XR device will corrupt the attribute before sending it to the neighboring devices. Neighboring devices that receive this corrupted update may reset the BGP peering session. Affected devices running Cisco IOS XR Software corrupt the unrecognized attribute before sending to neighboring devices, but neighboring devices may be running operating systems other than Cisco IOS XR Software and may still reset the BGP peering session after receiving the corrupted update. This is per standards defining the operation of BGP. Cisco developed a fix that addresses this vulnerability and will be releasing free software maintenance upgrades (SMU) progressively starting 28 August 2010. This advisory will be updated accordingly as fixes become available. |
Original Source
| Url : http://www.cisco.com/warp/public/707/cisco-sa-20100827-bgp.shtml |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 100 % | CWE-20 | Improper Input Validation |
CPE : Common Platform Enumeration
Open Source Vulnerability Database (OSVDB)
| Id | Description |
|---|---|
| 67696 | Cisco IOS XR BGP Peer Prefix Announcement Remote DoS |
