(0Day) Ashlar-Vellum Cobalt VS File Parsing Type Confusion Remote Code Execution Vulnerability
Vulnerability Details
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ashlar-Vellum Cobalt. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the parsing of VS files. The issue results from the lack of proper validation of user-supplied data, which can result in a type confusion condition. An attacker can leverage this vulnerability to execute code in the context of the current process.
Additional Details
09/13/24 – ZDI reported the vulnerability to the vendor
09/13/24 – the vendor acknowledged the receipt of the report
01/13/25 - ZDI asked for updates
01/17/25 – ZDI notified the vendor of the intention to publish the case as 0-day advisory
Disclosure Timeline
- 2024-09-13 - Vulnerability reported to vendor
- 2025-03-10 - Coordinated public release of advisory
- 2025-03-10 - Advisory Updated
Credit
Rocco Calvi (@TecR0c) with TecSecurity
