CVE-2008-3655

Severity: high (CVSS 7.5 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 14.1% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2008-08-13 · updated 2026-06-16
Weakness: CWE-264

Description

Ruby 1.8.5 and earlier, 1.8.6 through 1.8.6-p286, 1.8.7 through 1.8.7-p71, and 1.9 through r18423 does not properly restrict access to critical variables and methods at various safe levels, which allows context-dependent attackers to bypass intended access restrictions via (1) untrace_var, (2) $PROGRAM_NAME, and (3) syslog at safe level 4, and (4) insecure methods at safe levels 1 through 3.

Affected products

Ruby: through 1.8.5; 1.6.8, 1.8.0, 1.8.1, 1.8.1--9, 1.8.2, 1.8.2-preview2 (+40)

References

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=494401
http://lists.apple.com/archives/security-announce/2009/May/msg00002.html
http://secunia.com/advisories/31430
http://secunia.com/advisories/31697
http://secunia.com/advisories/32165
http://secunia.com/advisories/32219
http://secunia.com/advisories/32255
http://secunia.com/advisories/32256
http://secunia.com/advisories/32371
http://secunia.com/advisories/32372
http://secunia.com/advisories/33178
http://secunia.com/advisories/35074

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