VDB-106213 · CVE-2017-12211 · BID 100648

Cisco IOS/IOS XE IPv6 SNMP 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.
4.7$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Cisco IOS and IOS XE. This affects an unknown function of the component IPv6 SNMP. This manipulation causes resource management. This vulnerability appears as CVE-2017-12211. The attack may be initiated remotely. There is no available exploit. It is advisable to implement restrictive firewalling.

Detailsinfo

A vulnerability has been found in Cisco IOS and IOS XE (Router Operating System) (affected version not known) and classified as problematic. Affected by this vulnerability is some unknown functionality of the component IPv6 SNMP. The manipulation with an unknown input leads to a resource management vulnerability. The CWE definition for the vulnerability is CWE-399. As an impact it is known to affect availability. The summary by CVE is:

A vulnerability in the IPv6 Simple Network Management Protocol (SNMP) code of Cisco IOS and Cisco IOS XE Software could allow an authenticated, remote attacker to cause high CPU usage or a reload of the device. The vulnerability is due to IPv6 sub block corruption. An attacker could exploit this vulnerability by polling the affected device IPv6 information. An exploit could allow the attacker to trigger high CPU usage or a reload of the device. Known Affected Releases: Denali-16.3.1. Cisco Bug IDs: CSCvb14640.

The bug was discovered 09/06/2017. The weakness was presented 09/07/2017 with Cisco (Website). The advisory is shared at quickview.cloudapps.cisco.com. This vulnerability is known as CVE-2017-12211 since 08/03/2017. The attack can be launched remotely. A single authentication is required for exploitation. Neither technical details nor an exploit are publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $5k-$25k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 316139 (Cisco IOS and IOS XE Software IPv6 SNMP Message Handling Denial of Service Vulnerability (cisco-sa-20170906-snmp)).

Proper firewalling of udp/161 (snmp) is able to address this issue.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 100648†). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.8
VulDB Meta Temp Score: 4.7

VulDB Base Score: 4.3
VulDB Temp Score: 4.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
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

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔍

Firewalling: 🔍

Timelineinfo

08/03/2017 🔍
09/06/2017 +34 days 🔍
09/06/2017 +0 days 🔍
09/07/2017 +1 days 🔍
09/07/2017 +0 days 🔍
09/08/2017 +1 days 🔍
01/11/2021 +1221 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: quickview.cloudapps.cisco.com
Researcher: Cisco
Organization: Cisco
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-12211 (🔍)
GCVE (CVE): GCVE-0-2017-12211
GCVE (VulDB): GCVE-100-106213
SecurityFocus: 100648 - Cisco IOS and Cisco IOS XE CVE-2017-12211 Denial of Service Vulnerability
SecurityTracker: 1039290

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

Entryinfo

Created: 09/08/2017 10:23
Updated: 01/11/2021 08:37
Changes: 09/08/2017 10:23 (58), 11/13/2019 15:41 (11), 01/11/2021 08:32 (2), 01/11/2021 08:37 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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!