Published:2008/12/12  Last Updated:2008/12/17

Predictable session ID vulnerability in Access Analyzer CGI by futomi's CGI Cafe


Access Analyzer CGI from futomi's CGI Cafe contains a predictable session ID vulnerability.

Products Affected

  • Access Analyzer CGI Standard Version, Ver 4.0.1 and earlier
  • Access Analyzer CGI Professional Version, Ver 4.11.3 and earlier


Access Analyzer CGI provided by futomi's CGI Cafe is a software to analyze web access logs. Access Analyzer CGI contains a predictable session ID vulnerability.


A remote attacker could impersonate an administrator of Access Analyzer CGI. As a result, a remote attacker could view access analysis results of the website where the software resides.


Update the Software
Update to the latest version according to the information provided by the vendor.


JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Analyzed on 2008.12.12

Measures Conditions Severity
Access Required Routed - can be attacked over the Internet using packets
  • High
Authentication None - anonymous or no authentication (IP addresses do not count)
  • High
User Interaction Required None - the vulnerability can be exploited without an honest user taking any action
  • High
Exploit Complexity Low-Medium - some expertise and/or luck required (most buffer overflows, guessing correctly in small space, expertise in Windows function calls)
  • Medium-High

Description of each analysis measures


Other Information

JPCERT Reports
CERT Advisory
CPNI Advisory
CVE CVE-2008-5809
JVN iPedia JVNDB-2008-000083

Update History