Atlassian Confluence Server/Data Center up to 7.1.x Avatar Upload denial of service

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 (≈)
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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.
5.1$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Atlassian Confluence Server and Data Center up to 7.1.x. This vulnerability affects unknown code of the component Avatar Upload Handler. The manipulation leads to denial of service. This vulnerability is listed as CVE-2020-29450. The attack may be initiated remotely. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Atlassian Confluence Server and Data Center up to 7.1.x. It has been rated as problematic. This issue affects some unknown processing of the component Avatar Upload Handler. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability.

The weakness was presented 01/19/2021 as CONFSERVER-60854. It is possible to read the advisory at jira.atlassian.com. The identification of this vulnerability is CVE-2020-29450. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

Upgrading to version 7.2.0 eliminates this vulnerability.

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

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
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: Confluence Server/Data Center 7.2.0

Timelineinfo

12/01/2020 🔍
01/19/2021 +49 days 🔍
01/19/2021 +0 days 🔍
02/15/2021 +27 days 🔍

Sourcesinfo

Vendor: atlassian.com

Advisory: CONFSERVER-60854
Status: Confirmed

CVE: CVE-2020-29450 (🔍)
GCVE (CVE): GCVE-0-2020-29450
GCVE (VulDB): GCVE-100-168083

Entryinfo

Created: 01/19/2021 09:00
Updated: 02/15/2021 08:56
Changes: 01/19/2021 09:00 (39), 02/15/2021 08:51 (5), 02/15/2021 08:56 (18)
Complete: 🔍
Cache ID: 216::103

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

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