Ruby: Arbitrary command execution through XML-RPC

1. Gentoo Linux Security Advisory

Package	Vulnerable versions	Unaffected versions	Architecture(s)
dev-lang/ruby	< 1.8.2-r2	>= 1.8.2-r2	All supported architectures

Related bugreports: #96784

A vulnerability in XMLRPC.iPIMethods allows remote attackers to execute arbitrary commands.

2. Impact Information

Ruby is an interpreted scripting language for quick and easy object-oriented programming. XML-RPC is a remote procedure call protocol encoded in XML.

Nobuhiro IMAI reported that an invalid default value in "utils.rb" causes the security protections of the XML-RPC server to fail.

A remote attacker could exploit this vulnerability to execute arbitrary commands.

3. Resolution Information

There is no known workaround at this time.

All Ruby users should upgrade to the latest available version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-lang/ruby-1.8.2-r2"

4. References

Page updated July 11, 2005

Summary: This is a Gentoo Linux Security Advisory

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