Cisco IOS XR CLI os command injection

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.4$5k-$25k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Cisco IOS XR. Affected by this issue is some unknown functionality of the component CLI. The manipulation results in os command injection. This vulnerability is cataloged as CVE-2021-34728. The attack may be launched remotely. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical has been found in Cisco IOS XR (Router Operating System) (the affected version unknown). Affected is an unknown part of the component CLI. The manipulation with an unknown input leads to a os command injection vulnerability. CWE is classifying the issue as CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was shared 09/09/2021 as cisco-sa-iosxr-privescal-dZYMrKf. The advisory is shared for download at tools.cisco.com. This vulnerability is traded as CVE-2021-34728. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 09/09/2021). The MITRE ATT&CK project declares the attack technique as T1202.

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: 8.8
VulDB Meta Temp Score: 8.4

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
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: Os command injection
CWE: CWE-78 / CWE-77 / CWE-74
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-iosxr-privescal-dZYMrKf
Status: Confirmed

CVE: CVE-2021-34728 (🔍)
GCVE (CVE): GCVE-0-2021-34728
GCVE (VulDB): GCVE-100-182304
scip Labs: https://www.scip.ch/en/?labs.20150108

Entryinfo

Created: 09/09/2021 15:28
Updated: 09/11/2021 15:53
Changes: 09/09/2021 15:28 (57), 09/11/2021 15:48 (2), 09/11/2021 15:53 (1)
Complete: 🔍
Cache ID: 216::103

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