Cisco IOS/IOS XE BGP Attribute resource management

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Cisco IOS and IOS XE. Affected by this vulnerability is an unknown functionality of the component BGP Attribute Handler. Performing a manipulation results in resource management. This vulnerability is known as CVE-2016-1459. Remote exploitation of the attack is possible. No exploit is available. You should change the configuration settings.

Detailsinfo

A vulnerability classified as problematic has been found in Cisco IOS and IOS XE (Router Operating System) (affected version not known). This affects some unknown functionality of the component BGP Attribute Handler. The manipulation with an unknown input leads to a resource management vulnerability. CWE is classifying the issue as CWE-399. This is going to have an impact on availability. The summary by CVE is:

Cisco IOS 12.4 and 15.0 through 15.5 and IOS XE 3.13 through 3.17 allow remote authenticated users to cause a denial of service (device reload) via crafted attributes in a BGP message, aka Bug ID CSCuz21061.

The weakness was published 07/15/2016 with Cisco as cisco-sa-20160715-bgp / CSCuz21061 as confirmed advisory (Website). It is possible to read the advisory at tools.cisco.com. This vulnerability is uniquely identified as CVE-2016-1459 since 01/04/2016. It is possible to initiate the attack remotely. A authentication is required for exploitation. The technical details are unknown and an exploit is not publicly available. The advisory points out:

he vulnerability is due to improper processing of crafted BGP attributes. An attacker could exploit this vulnerability by sending crafted BGP messages to an affected device for processing when certain conditions are met. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition.

The vulnerability scanner Nessus provides a plugin with the ID 93123 (Cisco IOS XE Software Border Gateway Protocol Message Processing DoS (cisco-sa-20160715-bgp)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 316019 (Cisco IOS Software Border Gateway Protocol Message Processing Denial of Service Vulnerability (cisco-sa-20160715-bgp)).

It is possible to mitigate the problem by applying the configuration setting maxpath-limit. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (93123), SecurityFocus (BID 91800†) and SecurityTracker (ID 1036321†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.3
VulDB Temp Score: 5.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 93123
Nessus Name: Cisco IOS XE Software Border Gateway Protocol Message Processing DoS (cisco-sa-20160715-bgp)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 66234
OpenVAS Name: Cisco IOS Software Border Gateway Protocol Message Processing Denial of Service Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Config
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Config: maxpath-limit

Timelineinfo

01/04/2016 🔍
07/15/2016 +193 days 🔍
07/15/2016 +0 days 🔍
07/16/2016 +1 days 🔍
07/17/2016 +1 days 🔍
07/17/2016 +0 days 🔍
07/18/2016 +1 days 🔍
08/26/2016 +39 days 🔍
03/01/2019 +917 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20160715-bgp / CSCuz21061
Organization: Cisco
Status: Confirmed

CVE: CVE-2016-1459 (🔍)
GCVE (CVE): GCVE-0-2016-1459
GCVE (VulDB): GCVE-100-89595

OVAL: 🔍

SecurityFocus: 91800 - Cisco IOS and IOS XE Software CVE-2016-1459 Denial of Service Vulnerability
SecurityTracker: 1036321

scip Labs: https://www.scip.ch/en/?labs.20150108

Entryinfo

Created: 07/17/2016 23:00
Updated: 03/01/2019 10:08
Changes: 07/17/2016 23:00 (73), 03/01/2019 10:08 (12)
Complete: 🔍
Cache ID: 216::103

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