Atlassian JIRA Server/Data Center up to 8.5.3/8.6.1/8.7.0 Avatar Upload PNG File unrestricted upload

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability was found in Atlassian JIRA Server and Data Center up to 8.5.3/8.6.1/8.7.0. It has been classified as problematic. Impacted is an unknown function of the component Avatar Upload Handler. This manipulation as part of PNG File causes unrestricted upload. This vulnerability is registered as CVE-2019-20897. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability has been found in Atlassian JIRA Server and Data Center up to 8.5.3/8.6.1/8.7.0 (Bug Tracking Software) and classified as problematic. Affected by this vulnerability is an unknown code block of the component Avatar Upload Handler. The manipulation as part of a PNG File leads to a unrestricted upload vulnerability. The CWE definition for the vulnerability is CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. As an impact it is known to affect availability. The summary by CVE is:

The avatar upload feature in affected versions of Atlassian Jira Server and Data Center allows remote attackers to achieve Denial of Service via a crafted PNG file. The affected versions are before version 8.5.4, from version 8.6.0 before 8.6.2, and from version 8.7.0 before 8.7.1.

The weakness was published 07/13/2020 (Website). It is possible to read the advisory at jira.atlassian.com. This vulnerability is known as CVE-2019-20897 since 07/07/2020. The exploitation appears to be easy. The attack can be launched remotely. The requirement for exploitation is a single authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1608.002 according to MITRE ATT&CK.

Upgrading to version 8.5.4, 8.6.2 or 8.7.1 eliminates this vulnerability.

Similar entries are available at VDB-157858, VDB-157857 and VDB-157856. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

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: Unrestricted upload
CWE: CWE-434 / 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: 🔍

Upgrade: JIRA Server/Data Center 8.5.4/8.6.2/8.7.1

Timelineinfo

07/07/2020 🔍
07/13/2020 +6 days 🔍
07/13/2020 +0 days 🔍
07/13/2020 +0 days 🔍

Sourcesinfo

Vendor: atlassian.com

Advisory: jira.atlassian.com
Status: Not defined

CVE: CVE-2019-20897 (🔍)
GCVE (CVE): GCVE-0-2019-20897
GCVE (VulDB): GCVE-100-157855
See also: 🔍

Entryinfo

Created: 07/13/2020 07:58
Updated: 07/13/2020 08:03
Changes: 07/13/2020 07:58 (41), 07/13/2020 08:03 (18)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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