TestLink 1.9.20 File Upload keywordsImport.php unrestricted upload

HistoryDiffrelatejsonxmlCTI

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.
7.2	$0-$5k	0.00

Summaryinfo

A vulnerability classified as critical has been found in TestLink 1.9.20. Affected is an unknown function of the file keywordsImport.php of the component File Upload. This manipulation causes unrestricted upload. This vulnerability is tracked as CVE-2020-8639. The attack is possible to be carried out remotely. Moreover, an exploit is present.

Detailsinfo

A vulnerability classified as critical was found in TestLink 1.9.20. Affected by this vulnerability is some unknown processing of the file keywordsImport.php of the component File Upload. The manipulation with an unknown input 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 confidentiality, integrity, and availability. The summary by CVE is:

An unrestricted file upload vulnerability in keywordsImport.php in TestLink 1.9.20 allows remote attackers to execute arbitrary code by uploading a file with an executable extension. This allows an authenticated attacker to upload a malicious file (containing PHP code to execute operating system commands) to a publicly accessible directory of the application.

The weakness was disclosed 04/03/2020 (GitHub Repository). It is possible to read the advisory at github.com. This vulnerability is known as CVE-2020-8639 since 02/05/2020. The attack can be launched remotely. Required for exploitation is a single authentication. Technical details and also a public exploit are known. The attack technique deployed by this issue is T1608.002 according to MITRE ATT&CK.

It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. By approaching the search of inurl:keywordsImport.php it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Exploit-DB (49561). The entries VDB-152766 and VDB-152765 are pretty similar. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

TestLink

Version

1.9.20

License

open-source

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.2

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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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: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Patch: github.com

Timelineinfo

02/05/2020 🔍
04/03/2020 +58 days 🔍
04/04/2020 +1 days 🔍
02/09/2025 +1772 days 🔍

Sourcesinfo

Advisory: 161401
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2020-8639 (🔍)
GCVE (CVE): GCVE-0-2020-8639
GCVE (VulDB): GCVE-100-152767
scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 04/04/2020 13:48
Updated: 02/09/2025 03:54
Changes: 04/04/2020 13:48 (38), 04/04/2020 13:53 (17), 10/07/2020 13:07 (1), 05/17/2024 06:12 (19), 02/09/2025 03:54 (15)
Complete: 🔍
Cache ID: 216::103