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Files from Derek Martin

RSSH 2.3.4 Released

Posted Nov 28, 2012

Authored by Derek Martin | Site pizzashack.org

RSSH version 2.3.4 was released to address an environment variable manipulation vulnerability and an improper filtering of the rsync command line.

tags | advisory

advisories | CVE-2012-3478, CVE-2012-2252

SHA-256 | 3292f4ccb0a7fd1db2d5443d8a6d96f69577b83251c4988b59049dc9a3bd99c8

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RSSH Circumvention

Posted May 9, 2012

Authored by Derek Martin | Site pizzashack.org

Henrik Erkkonen has discovered that, through clever manipulation of environment variables on the ssh command line, it is possible to circumvent rssh.

tags | advisory

SHA-256 | e569ddc10821d9e494884093dab704f6cca8c684a13ead70079866b8250e251e

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rssh230.txt

Posted Dec 31, 2005

Authored by Derek Martin | Site pizzashack.org

Max Vozeler reported a flaw in the design of rssh_chroot_helper whereby it can be exploited to chroot to arbitrary directories and thereby gain root access. If rssh is installed on a system, and non-trusted users on that system have access which is not protected by rssh (i.e. they have full shell access), then they can use rssh_chroot_helper to chroot to arbitrary locations in the file system, and thereby gain root access. Versions of rssh below 2.3.0 are affected.

tags | advisory, arbitrary, shell, root

SHA-256 | e0400de36fd827a4ed316391ce7f793e1db1e6ed15f917f0dbbe692281d94f10

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rsshFormat.txt

Posted Oct 27, 2004

Authored by Derek Martin | Site pizzashack.org

rssh versions below 2.2.2 suffer from a format string vulnerability that may allow for privilege escalation.

tags | advisory

SHA-256 | 4e71754c1ea5a52d4e553addf2ba481fd95acd61c1c8fb641f366430dbdfc6a1

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rsshFlaw.txt

Posted Jun 22, 2004

Authored by Derek Martin | Site pizzashack.org

rssh, the small shell whose purpose is to restrict users to using scp or sftp, has a bug that allows a user to gather information outside of a chrooted jail unintentionally. Affected versions are 2.0 through 2.1.x.

tags | advisory, shell

SHA-256 | 311bdd186d8b1ea269ad967cd01b3b095ad35878525c4d3fb410e7ef1f211d8b

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