#VU80013 Inefficient regular expression complexity in Mailform Pro CGI - CVE-2023-40599

Vulnerability identifier: #VU80013

Vulnerability risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-40599

CWE-ID: CWE-1333

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Mailform Pro CGI
Other software / Other software solutions

Vendor: SYNCK GRAPHICA

Description

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

The vulnerability exists due to insufficient input validation when processing untrusted input with a regular expressions. A remote attacker can pass specially crafted data to the application and perform regular expression denial of service (ReDos) attack.

This vulnerability affects the product when the following functions are enabled:

• call/call.js
• prefcodeadv/search.cgi
• estimate/estimate.js
• search/search.js
• suggest/suggest.js
• coupon/coupon.js

Mitigation
Install update from vendor's website.

Vulnerable software versions

Mailform Pro CGI: 4.3.1.3

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External links
https://www.synck.com/blogs/news/newsroom/detail_1691668841.html
https://jvn.jp/en/jp/JVN86484824/

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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.