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Fencer Vulns
low 2.1

CVE-2004-0755 json

The FileStore capability in CGI::Session for Ruby before 1.8.1, and possibly PStore, creates files with insecure permissions, which can all…

published 2004-08-19 22 y ago modified 2026-06-16 4 mo ago also EUVD-2004-0753

cvss
2.1
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 30%
public exploits
0
none known

Summary

The FileStore capability in CGI::Session for Ruby before 1.8.1, and possibly PStore, creates files with insecure permissions, which can allow local users to steal session information and hijack sessions.

Patch / fix

  • ruby RHEL 3 1.6.8-9.EL3.2
  • irb RHEL 3 1.6.8-9.EL3.2
  • ruby-libs RHEL 3 1.6.8-9.EL3.2
  • ruby-mode RHEL 3 1.6.8-9.EL3.2
  • ruby-tcltk RHEL 3 1.6.8-9.EL3.2

red hat advisories RHSA-2004:441

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2004-0755 updated

security flaw

  • Red Hat Desktop version 3 irb 1.6.8-9.EL3.2, ruby 1.6.8-9.EL3.2, ruby-libs 1.6.8-9.EL3.2, ruby-mode 1.6.8-9.EL3.2, ruby-tcltk 1.6.8-9.EL3.2 Red Hat Enterprise Linux AS version 3 irb 1.6.8-9.EL3.2, ruby 1.6.8-9.EL3.2, ruby-libs 1.6.8-9.EL3.2, ruby-mode 1.6.8-9.EL3.2, ruby-tcltk 1.6.8-9.EL3.2 Red Hat Enterprise Linux ES version 3 irb 1.6.8-9.EL3.2, ruby 1.6.8-9.EL3.2, ruby-libs 1.6.8-9.EL3.2, ruby-mode 1.6.8-9.EL3.2, ruby-tcltk 1.6.8-9.EL3.2 Red Hat Enterprise Linux WS version 3 irb 1.6.8-9.EL3.2, ruby 1.6.8-9.EL3.2, ruby-libs 1.6.8-9.EL3.2, ruby-mode 1.6.8-9.EL3.2, ruby-tcltk 1.6.8-9.EL3.2
    fixed: vendor fix RHSA-2004:441

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.36% chance of exploitation in the next 30 days, higher than 30% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 2.1 AV:L/AC:L/Au:N/C:P/I:N/A:N

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.