CVE-2021-21867

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-21867
An unsafe deserialization vulnerability exists in the ObjectManager.plugin ObjectStream.ProfileByteArray functionality of CODESYS GmbH CODESYS Development System 3.5.16 and 3.5.17. A specially crafted file can lead to arbitrary command execution. An attacker can provide a malicious file to trigger this vulnerability.

7.8 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8 /10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References
Link Resource
https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=16805&token=ee583c498941d9fda86490bca98ff21928eec08a&download= Mitigation Patch Vendor Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1304 Exploit Third Party Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:codesys:codesys:3.5.16.0:*:*:*:*:*:*:*
cpe:2.3:a:codesys:codesys:3.5.17.0:*:*:*:*:*:*:*
History

29 Jul 2022, 12:51

Type Values Removed Values Added
References (MISC) https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=16805&token=ee583c498941d9fda86490bca98ff21928eec08a&download= - Vendor Advisory (MISC) https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=16805&token=ee583c498941d9fda86490bca98ff21928eec08a&download= - Mitigation, Patch, Vendor Advisory

07 Oct 2021, 19:06

Type Values Removed Values Added
References (MISC) https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=16805&token=ee583c498941d9fda86490bca98ff21928eec08a&download= - (MISC) https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=16805&token=ee583c498941d9fda86490bca98ff21928eec08a&download= - Vendor Advisory

29 Sep 2021, 20:15

Type Values Removed Values Added
References
  • (MISC) https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=16805&token=ee583c498941d9fda86490bca98ff21928eec08a&download= -

25 Aug 2021, 19:15

Type Values Removed Values Added
Summary A unsafe deserialization vulnerability exists in the ObjectManager.plugin ObjectStream.ProfileByteArray functionality of CODESYS GmbH CODESYS Development System 3.5.16 and 3.5.17. A specially crafted file can lead to arbitrary command execution. An attacker can provide a malicious file to trigger this vulnerability. An unsafe deserialization vulnerability exists in the ObjectManager.plugin ObjectStream.ProfileByteArray functionality of CODESYS GmbH CODESYS Development System 3.5.16 and 3.5.17. A specially crafted file can lead to arbitrary command execution. An attacker can provide a malicious file to trigger this vulnerability.
CPE cpe:2.3:a:codesys:codesys:3.5.16.0:*:*:*:*:*:*:*
cpe:2.3:a:codesys:codesys:3.5.17.0:*:*:*:*:*:*:*
References (MISC) https://talosintelligence.com/vulnerability_reports/TALOS-2021-1304 - (MISC) https://talosintelligence.com/vulnerability_reports/TALOS-2021-1304 - Exploit, Third Party Advisory
CWE CWE-502
CVSS v2 : unknown
v3 : unknown 		v2 : 6.8
v3 : 7.8

18 Aug 2021, 15:26

Type Values Removed Values Added
New CVE
Information

Published : 2021-08-18 15:15

Updated : 2023-12-10 13:55

NVD link : CVE-2021-21867

Mitre link : CVE-2021-21867

CVE.ORG link : CVE-2021-21867

JSON object : View

Products Affected

codesys

  • codesys
CWE
CWE-502

Deserialization of Untrusted Data