fail2ban up to 0.9.7/0.10.6/0.11.2 mail-whois 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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4.8$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in fail2ban up to 0.9.7/0.10.6/0.11.2. This affects an unknown function of the component mail-whois. The manipulation results in os command injection. This vulnerability is cataloged as CVE-2021-32749. The attack may be launched remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in fail2ban up to 0.9.7/0.10.6/0.11.2. Affected is some unknown functionality of the component mail-whois. 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 07/17/2021. The advisory is shared for download at github.com. This vulnerability is traded as CVE-2021-32749. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1202.

Upgrading to version 0.10.7 or 0.11.3 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.0
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.0
VulDB Temp Score: 4.8
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: 🔍

Upgrade: fail2ban 0.10.7/0.11.3
Patch: github.com

Timelineinfo

05/12/2021 🔍
07/17/2021 +66 days 🔍
07/17/2021 +0 days 🔍
07/19/2021 +2 days 🔍

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-32749 (🔍)
GCVE (CVE): GCVE-0-2021-32749
GCVE (VulDB): GCVE-100-178824

Entryinfo

Created: 07/17/2021 09:50
Updated: 07/19/2021 19:40
Changes: 07/17/2021 09:50 (38), 07/19/2021 19:32 (3), 07/19/2021 19:40 (1)
Complete: 🔍
Cache ID: 216::103

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