Description
WinSig.exe in eSignal 10.6.2425 and earlier allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via (1) a long StyleTemplate element in a QUO, SUM or POR file, which triggers a stack-based buffer overflow, or (2) a long Font->FaceName field (aka FaceName element), which triggers a heap-based buffer overflow. NOTE: some of these details are obtained from third party information.
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Metasploit 1 module
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eSignal and eSignal Pro File Parsing Buffer Overflow in QUO
exploit/windows/fileformat/esignal_styletemplate_bof
Exploit-DB 2
- eSignal and eSignal Pro 10.6.2425.1208 - File Parsing Buffer Overflow in QUO (Metasploit) EDB-17880 · local · Sep 20, 2011 · verified
- eSignal and eSignal Pro 10.6.2425.1208 - Multiple Vulnerabilities EDB-17837 · dos · Sep 14, 2011
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- http://aluigi.altervista.org/adv/esignal_1-adv.txt
- 45966 third-party-advisory