A vulnerability was found in Econolite EOS Traffic Control (affected version unknown). It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the component Configuration File Handler. The manipulation with an unknown input leads to a use of weak hash vulnerability. The CWE definition for the vulnerability is CWE-328. The product uses an algorithm that produces a digest (output value) that does not meet security expectations for a hash function that allows an adversary to reasonably determine the original input (preimage attack), find another input that can produce the same hash (2nd preimage attack), or find multiple inputs that evaluate to the same hash (birthday attack). As an impact it is known to affect confidentiality. The summary by CVE is:

All versions of Econolite EOS traffic control software are vulnerable to CWE-328: Use of Weak Hash, and use a weak hash algorithm for encrypting privileged user credentials. A configuration file that is accessible without authentication uses MD5 hashes for encrypting credentials, including those of administrators and technicians.

The weakness was shared 01/27/2023 as icsa-23-026-02. The advisory is shared at cisa.gov. This vulnerability is known as CVE-2023-0452 since 01/23/2023. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1600.001 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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• Econolite

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• EOS Traffic Control

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