Cisco ASA/Firepower Threat Defense IDFW Rule access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability was found in Cisco ASA and Firepower Threat Defense. It has been rated as critical. The impacted element is an unknown function of the component IDFW Rule Handler. Performing a manipulation results in access control. This vulnerability is reported as CVE-2021-34787. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Cisco ASA and Firepower Threat Defense (Firewall Software) (version unknown). It has been classified as critical. This affects an unknown function of the component IDFW Rule Handler. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was disclosed 10/28/2021 as cisco-sa-asaftd-rule-bypass-ejjOgQEY. The advisory is shared at tools.cisco.com. This vulnerability is uniquely identified as CVE-2021-34787 since 06/15/2021. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/28/2023). MITRE ATT&CK project uses the attack technique T1068 for this issue.

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: 6.0
VulDB Meta Temp Score: 5.9

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
NVD Vector: 🔍

CNA Base Score: 5.3
CNA Vector (Cisco Systems, Inc.): 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
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 🔍
10/28/2021 +135 days 🔍
10/28/2021 +0 days 🔍
07/28/2023 +638 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-asaftd-rule-bypass-ejjOgQEY
Status: Confirmed

CVE: CVE-2021-34787 (🔍)
GCVE (CVE): GCVE-0-2021-34787
GCVE (VulDB): GCVE-100-185577

Entryinfo

Created: 10/28/2021 06:23
Updated: 07/28/2023 15:08
Changes: 10/28/2021 06:23 (49), 11/01/2021 08:11 (1), 11/01/2021 08:14 (18), 07/28/2023 15:08 (2)
Complete: 🔍
Cache ID: 216::103

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