#VU66740 Integer underflow in Secure Integration Server - CVE-2022-2335

Vulnerability identifier: #VU66740

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-2335

CWE-ID: CWE-191

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Secure Integration Server
Other software / Other software solutions

Vendor: Softing AG

Description

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

The vulnerability exists due to integer underflow. A remote attacker can send a specially crafted HTTP packet to the affected application, trigger integer underflow and cause a denial of service condition on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Secure Integration Server: 1.22

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External links
https://www.cisa.gov/uscert/ics/advisories/icsa-22-228-04
https://industrial.softing.com/fileadmin/psirt/downloads/syt-2022-4.html
https://www.zerodayinitiative.com/advisories/ZDI-22-1160/

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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.