Nefteprodukttekhnika BUK TS-G Gas Station Automation System up to 2.10.2 on Linux System Configuration /php/ajax-login.php improper authentication

Summaryinfo

A vulnerability labeled as critical has been found in Nefteprodukttekhnika BUK TS-G Gas Station Automation System up to 2.10.2 on Linux. The impacted element is an unknown function of the file /php/ajax-login.php of the component System Configuration Module. Executing a manipulation can lead to improper authentication. This vulnerability appears as CVE-2026-12183. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability classified as critical was found in Nefteprodukttekhnika BUK TS-G Gas Station Automation System up to 2.10.2 on Linux. This vulnerability affects an unknown part of the file /php/ajax-login.php of the component System Configuration Module. The manipulation with an unknown input leads to a improper authentication vulnerability. The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Nefteprodukttekhnika BUK TS-G Gas Station Automation System 2.9.1 through 2.10.2 on Linux contains an Improper Authentication vulnerability (CWE-287) in the system configuration module. The /php/ajax-login.php endpoint returns userid=1 (administrator) in response to any HTTP POST request that supplies arbitrary credentials (e.g., action=dologin&login=&pwd=), and subsequent privileged endpoints under /php/ajax-main.php and /modules/* do not validate a server-side session. A remote unauthenticated attacker can invoke any administrative action exposed by the configuration module, including reading and modifying user rules, fuel tank gauges, fuel dispensers, relays, cash registers, bank terminals, fuel cards, price and customer displays, cash collection, and pricing rules.

The weakness was presented by Qahramon Choriyev. The advisory is shared for download at github.com. This vulnerability was named CVE-2026-12183 since 06/13/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 06/14/2026).

By approaching the search of inurl:php/ajax-login.php it is possible to find vulnerable targets with Google Hacking.

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

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-36653). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Automation Software

Vendor

• Nefteprodukttekhnika

Name

• BUK TS-G Gas Station Automation System

Version

• 2.10.0
• 2.10.1
• 2.10.2

CPE 2.3info

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CPE 2.2info

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Once again VulDB remains the best source for vulnerability data.

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