VDB-205604 · CVE-2022-2653 · GCVE-0-2022-2653

Planka Environment Variable /proc/self/environ path traversal

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.
5.6	$0-$5k	0.00

Summaryinfo

A vulnerability classified as critical was found in Planka. This vulnerability affects unknown code of the file /proc/self/environ of the component Environment Variable Handler. Such manipulation leads to path traversal. This vulnerability is traded as CVE-2022-2653. The attack may be launched remotely. There is no exploit available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability was found in Planka (version unknown). It has been rated as critical. Affected by this issue is an unknown function of the file /proc/self/environ of the component Environment Variable Handler. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is confidentiality. CVE summarizes:

With this vulnerability an attacker can read many sensitive files like configuration files, or the /proc/self/environ file, that contains the environment variable used by the web server that includes database credentials. If the web server user is root, an attacker will be able to read any file in the system.

The weakness was shared 08/04/2022. The advisory is shared for download at huntr.dev. This vulnerability is handled as CVE-2022-2653 since 08/04/2022. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1006.

Applying the patch ac1df5201dfdaf68d37f7e1b272bc137870d7418 is able to eliminate this problem. The bugfix is ready for download at github.com.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

Planka

License

open-source

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.6

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

CNA Base Score: 7.1
CNA Vector (huntr.dev): 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

Exploitinginfo

Class: Path traversal
CWE: CWE-22
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: ac1df5201dfdaf68d37f7e1b272bc137870d7418

Timelineinfo

08/04/2022 🔍
08/04/2022 +0 days 🔍
08/04/2022 +0 days 🔍
08/30/2022 +26 days 🔍

Sourcesinfo

Advisory: ac1df5201dfdaf68d37f7e1b272bc137870d7418
Status: Confirmed

CVE: CVE-2022-2653 (🔍)
GCVE (CVE): GCVE-0-2022-2653
GCVE (VulDB): GCVE-100-205604

Entryinfo

Created: 08/04/2022 15:31
Updated: 08/30/2022 12:14
Changes: 08/04/2022 15:31 (50), 08/30/2022 12:14 (1)
Complete: 🔍
Cache ID: 216::103