Cisco IOS XR IP SLA/TWAMP resource consumption

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Cisco IOS XR. This vulnerability affects unknown code of the component IP SLA/TWAMP. Performing a manipulation results in resource consumption. This vulnerability is known as CVE-2021-34720. Remote exploitation of the attack is possible. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Cisco IOS XR (Router Operating System) (affected version unknown). This affects an unknown functionality of the component IP SLA/TWAMP. The manipulation with an unknown input leads to a resource consumption vulnerability. CWE is classifying the issue as CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. This is going to have an impact on availability.

The weakness was published 09/09/2021 as cisco-sa-ipsla-ZA3SRrpP. It is possible to read the advisory at tools.cisco.com. This vulnerability is uniquely identified as CVE-2021-34720. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

Upgrading eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / 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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/15/2021 🔍
09/09/2021 +86 days 🔍
09/09/2021 +0 days 🔍
09/11/2021 +2 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-ipsla-ZA3SRrpP
Status: Confirmed

CVE: CVE-2021-34720 (🔍)
GCVE (CVE): GCVE-0-2021-34720
GCVE (VulDB): GCVE-100-182295
scip Labs: https://www.scip.ch/en/?labs.20150108

Entryinfo

Created: 09/09/2021 15:21
Updated: 09/11/2021 14:37
Changes: 09/09/2021 15:21 (38), 09/11/2021 14:33 (2), 09/11/2021 14:37 (1)
Complete: 🔍
Cache ID: 216::103

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