Backblaze bztransmit Helper certificate validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Backblaze. This vulnerability affects unknown code of the component bztransmit Helper. Performing a manipulation results in certificate validation. This vulnerability is identified as CVE-2020-8289. The attack can be initiated remotely. Additionally, an exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Backblaze (version now known). This affects some unknown processing of the component bztransmit Helper. The manipulation with an unknown input leads to a certificate validation vulnerability. CWE is classifying the issue as CWE-295. The product does not validate, or incorrectly validates, a certificate. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was released 12/27/2020. This vulnerability is uniquely identified as CVE-2020-8289. Technical details are unknown but an exploit is available. The attack technique deployed by this issue is T1587.003 according to MITRE ATT&CK.

The exploit is shared for download at hackerone.com. It is declared as proof-of-concept.

Upgrading eliminates this vulnerability. The upgrade is hosted for download at backblaze.com.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

CPE 2.3info

CPE 2.2info

Video

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
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: Certificate validation
CWE: CWE-295 / CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept
Download: 🔍

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: backblaze.com

Timelineinfo

12/27/2020 🔍
12/27/2020 +0 days 🔍
12/27/2020 +0 days 🔍

Sourcesinfo

Status: Confirmed
Confirmation: 🔍

CVE: CVE-2020-8289 (🔍)
GCVE (CVE): GCVE-0-2020-8289
GCVE (VulDB): GCVE-100-166851
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 12/27/2020 10:09
Changes: 12/27/2020 10:09 (35), 12/27/2020 10:10 (4)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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