Multiple vulnerabilities in CODESYS Development System



Published: 2021-04-28 | Updated: 2023-08-15
Risk Low
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2021-29240
CVE-2023-3670
CWE-ID CWE-254
CWE-276
Exploitation vector Local
Public exploit N/A
Vulnerable software
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CODESYS Development System
Client/Desktop applications / Other client software

Vendor CODESYS

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Security features bypass

EUVDB-ID: #VU55242

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-29240

CWE-ID: CWE-254 - Security Features

Exploit availability: No

Description

The vulnerability allows a local attacke to compromise the target system.

The vulnerability exists due to the lack of validity of packages before installation in the Package Manager. A local attacker can install CODESYS packages with malicious content. 

Mitigation

Install updates from vendor's website.

Vulnerable software versions

CODESYS Development System: 3.5.16.0

External links

http://customers.codesys.com/index.php
http://customers.codesys.com/index.php?eID=dumpFile&t=f&f=14636&token=1ce7e6e4cbe4651989ede418450d7c82e972bdf2&download=
http://www.codesys.com/security/security-reports.html


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Incorrect default permissions

EUVDB-ID: #VU79508

Risk: Low

CVSSv3.1: 3.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-3670

CWE-ID: CWE-276 - Incorrect Default Permissions

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to incorrect default permissions for files and folders that are set by the application. A local user with access to the system can view contents of files and directories or modify them.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

CODESYS Development System: before 4.1.0.0

External links

http://cert.vde.com/en/advisories/VDE-2023-024


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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