Cisco StarOS 16.4.1/19.1.0/21.1.0/21.1.M0.65824 on ASR 5000 BGP resource management

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.1$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Cisco StarOS 16.4.1/19.1.0/21.1.0/21.1.M0.65824 on ASR 5000. This affects an unknown part of the component BGP Handler. The manipulation leads to resource management. This vulnerability is documented as CVE-2017-6729. The attack can be initiated remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Cisco StarOS 16.4.1/19.1.0/21.1.0/21.1.M0.65824 on ASR 5000 (Router Operating System). It has been rated as problematic. This issue affects an unknown functionality of the component BGP Handler. The manipulation with an unknown input leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is availability. The summary by CVE is:

A vulnerability in the Border Gateway Protocol (BGP) processing functionality of the Cisco StarOS operating system for Cisco ASR 5000 Series Routers and Cisco Virtualized Packet Core (VPC) Software could allow an unauthenticated, remote attacker to cause the BGP process on an affected system to reload, resulting in a denial of service (DoS) condition. This vulnerability affects the following products if they are running the Cisco StarOS operating system and BGP is enabled for the system: Cisco ASR 5000 Series Routers and Cisco Virtualized Packet Core Software. More Information: CSCvc44968. Known Affected Releases: 16.4.1 19.1.0 21.1.0 21.1.M0.65824. Known Fixed Releases: 21.3.A0.65902 21.2.A0.65905 21.1.b0.66164 21.1.V0.66014 21.1.R0.65898 21.1.M0.65894 21.1.0.66030 21.1.0.

The bug was discovered 07/05/2017. The weakness was released 07/10/2017 with Cisco as cisco-sa-20170705-staros as confirmed advisory (Website). It is possible to read the advisory at tools.cisco.com. The identification of this vulnerability is CVE-2017-6729 since 03/09/2017. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 101529 (Cisco ASR StarOS Border Gateway Protocol Process DoS (cisco-sa-20170705-staros)), 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.

Upgrading to version 21.3.A0.65902, 21.2.A0.65905, 21.1.b0.66164, 21.1.V0.66014, 21.1.R0.65898, 21.1.M0.65894, 21.1.0.66030 or 21.1.0 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (101529) and SecurityFocus (BID 100015†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 101529
Nessus Name: Cisco ASR StarOS Border Gateway Protocol Process DoS (cisco-sa-20170705-staros)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: StarOS 21.3.A0.65902/21.2.A0.65905/21.1.b0.66164/21.1.V0.66014/21.1.R0.65898/21.1.M0.65894/21.1.0.66030/21.1.0

Timelineinfo

03/09/2017 🔍
07/05/2017 +118 days 🔍
07/05/2017 +0 days 🔍
07/10/2017 +5 days 🔍
07/10/2017 +0 days 🔍
07/12/2017 +2 days 🔍
07/13/2017 +1 days 🔍
07/28/2017 +15 days 🔍
12/31/2020 +1252 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20170705-staros
Researcher: Cisco
Organization: Cisco
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-6729 (🔍)
GCVE (CVE): GCVE-0-2017-6729
GCVE (VulDB): GCVE-100-103391
SecurityFocus: 100015 - Cisco StarOS CVE-2017-6729 Remote Denial of Service Vulnerability
SecurityTracker: 1038819

Entryinfo

Created: 07/12/2017 10:17
Updated: 12/31/2020 14:25
Changes: 07/12/2017 10:17 (70), 10/24/2019 16:52 (6), 12/31/2020 14:22 (2), 12/31/2020 14:25 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to stay up to date on a daily basis?

Enable the mail alert feature now!