#VU85960 Untrusted Pointer Dereference in CODESYS products - CVE-2022-47393

Vulnerability identifier: #VU85960

Vulnerability risk: Medium

CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-47393

CWE-ID: CWE-822

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
CODESYS Control RTE
Client/Desktop applications / Other client software
CODESYS Control RTE (for Beckhoff CX)
Client/Desktop applications / Other client software
CODESYS Control Win
Client/Desktop applications / Other client software
CODESYS Control Runtime System Toolkit
Client/Desktop applications / Other client software
CODESYS Safety SIL2 Runtime Toolkit
Client/Desktop applications / Other client software
CODESYS Safety SIL2 PSP
Client/Desktop applications / Other client software
CODESYS HMI
Client/Desktop applications / Other client software
CODESYS Development System V3
Client/Desktop applications / Other client software
CODESYS Control for BeagleBone SL
Client/Desktop applications / Other client software
CODESYS Control for emPC-A/iMX6 SL
Client/Desktop applications / Other client software
CODESYS Control for IOT2000 SL
Client/Desktop applications / Other client software
CODESYS Control for Linux SL
Client/Desktop applications / Other client software
CODESYS Control for PFC100 SL
Client/Desktop applications / Other client software
CODESYS Control for PFC200 SL
Client/Desktop applications / Other client software
CODESYS Control for PLCnext SL
Client/Desktop applications / Other client software
CODESYS Control for Raspberry Pi SL
Client/Desktop applications / Other client software
CODESYS Control for WAGO Touch Panels 600 SL
Client/Desktop applications / Other client software

Vendor: CODESYS

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to untrusted pointer dereference in the CmpFiletransfer component . A remote usercan send a specially crafted request and cause a denial of service condition on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

CODESYS Control RTE: before 3.5.19.0

CODESYS Control RTE (for Beckhoff CX): before 3.5.19.0

CODESYS Control Win: before 3.5.19.0

CODESYS Control Runtime System Toolkit: before 3.5.19.0

CODESYS Safety SIL2 Runtime Toolkit: before 3.5.19.0

CODESYS Safety SIL2 PSP: before 3.5.19.0

CODESYS HMI: before 3.5.19.0

CODESYS Development System V3: before 3.5.19.0

CODESYS Control for BeagleBone SL: before 4.8.0.0

CODESYS Control for emPC-A/iMX6 SL: before 4.8.0.0

CODESYS Control for IOT2000 SL: before 4.8.0.0

CODESYS Control for Linux SL: before 4.8.0.0

CODESYS Control for PFC100 SL: before 4.8.0.0

CODESYS Control for PFC200 SL: before 4.8.0.0

CODESYS Control for PLCnext SL: before 4.8.0.0

CODESYS Control for Raspberry Pi SL: before 4.8.0.0

CODESYS Control for WAGO Touch Panels 600 SL: before 4.8.0.0

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External links
https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=17554&token=5444f53b4c90fe37043671a100dffa75305d1825&download=

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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