Btrbk up to 0.31.1 SSH Command ssh_filter_btrbk.sh privilege escalation

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.
6.0$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Btrbk up to 0.31.1. Affected is an unknown function of the file ssh_filter_btrbk.sh of the component SSH Command Handler. The manipulation results in an unknown weakness. This vulnerability is known as CVE-2021-38173. It is possible to launch the attack remotely. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Btrbk up to 0.31.1. Affected is an unknown functionality of the file ssh_filter_btrbk.sh of the component SSH Command Handler. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was published 08/08/2021 as 58212de771c381cd4fa05625927080bf264e9584. The advisory is shared for download at github.com. This vulnerability is traded as CVE-2021-38173. There are known technical details, but no exploit is available.

Upgrading to version 0.31.2 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.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Privilege escalation
CWE: Unknown
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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Btrbk 0.31.2
Patch: github.com

Timelineinfo

08/07/2021 🔍
08/08/2021 +1 days 🔍
08/08/2021 +0 days 🔍
08/10/2021 +2 days 🔍

Sourcesinfo

Advisory: 58212de771c381cd4fa05625927080bf264e9584
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-38173 (🔍)
GCVE (CVE): GCVE-0-2021-38173
GCVE (VulDB): GCVE-100-180300

Entryinfo

Created: 08/08/2021 09:02
Updated: 08/10/2021 16:47
Changes: 08/08/2021 09:02 (38), 08/10/2021 16:47 (3)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you need the next level of professionalism?

Upgrade your account now!