#VU51957 Cross-site request forgery in OPC - CVE-2021-29660

Vulnerability identifier: #VU51957

Vulnerability risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-29660

CWE-ID: CWE-352

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
OPC
Server applications / Other server solutions

Vendor: Softing AG

Description

The vulnerability allows a remote attacker to perform cross-site request forgery attacks.

The vulnerability exists due to insufficient validation of the HTTP request origin in the en/cfg_setpwd.html. A remote attacker can trick the victim to visit a specially crafted web page and perform arbitrary actions on behalf of the victim on the vulnerable website.

Mitigation
Install update from vendor's website.

Vulnerable software versions

OPC: 4.10.1.13035

---

External links
https://www.gruppotim.it/redteam
https://data-intelligence.softing.com/us/support/download-archive/

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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