Domain/OS suid_exec Vulnerability
BID:7
Info
Domain/OS suid_exec Vulnerability
| Bugtraq ID: | 7 |
| Class: | Unknown |
| CVE: | |
| Remote: | Yes |
| Local: | No |
| Published: | Jul 27 1990 12:00AM |
| Updated: | Jul 27 1990 12:00AM |
| Credit: | |
| Vulnerable: |
Apollo Domain/OS 10.2 |
| Not Vulnerable: |
Apollo Domain/OS 10.1 |
Discussion
Domain/OS suid_exec Vulnerability
There exists a vulnerability in the /etc/suid_exec program.
This file is normally required by the Korn Shell to run set-id
Korn Shell scripts, but is a no-op on HP/Apollo systems
since Domain/OS does NOT support the execution of set-id
shell scripts. Its purpose is to serve as the 'agent' described
in the manual page for the Korn Shell under 'Execution'. An
error during compilation introduced the reported
vulnerability. The removal of this file will have no affect on
the functionality provided by HP/Apollo systems, but will
affect the installation procedure as mentioned in the solution
section.
This vulnerability affects Domain/OS Release SR10.2 and
in beta servions of SR10.3 earlier than bl67. This
vulnerability is not present in SR10.1. This vulnerability
can be referred to as APR number DE278.
There exists a vulnerability in the /etc/suid_exec program.
This file is normally required by the Korn Shell to run set-id
Korn Shell scripts, but is a no-op on HP/Apollo systems
since Domain/OS does NOT support the execution of set-id
shell scripts. Its purpose is to serve as the 'agent' described
in the manual page for the Korn Shell under 'Execution'. An
error during compilation introduced the reported
vulnerability. The removal of this file will have no affect on
the functionality provided by HP/Apollo systems, but will
affect the installation procedure as mentioned in the solution
section.
This vulnerability affects Domain/OS Release SR10.2 and
in beta servions of SR10.3 earlier than bl67. This
vulnerability is not present in SR10.1. This vulnerability
can be referred to as APR number DE278.
Exploit / POC
Domain/OS suid_exec Vulnerability
Currently the SecurityFocus staff are not aware of any exploits for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected].
Currently the SecurityFocus staff are not aware of any exploits for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected].
Solution / Fix
Domain/OS suid_exec Vulnerability
Solution:
This file should be deleted IMMEDIATELY from the /etc
directories on all HP/Apollo nodes AND from all authorized
areas on HP/Apollo networks from which software can be
installed.
The files that must be deleted are:
On each node:
//<node>/etc/suid_exec
In each Authorized Area:
<AA>/install/ri.apollo.os.v.10.2/sys5.3/etc/suid_exec
<AA>/install/ri.apollo.os.v.10.2/bsd4.3/etc/suid_exec
<AA>/install/ri.apollo.os.v.10.2.p/sys5.3/etc/suid_exec
<AA>/install/ri.apollo.os.v.10.2.p/bsd4.3/etc/suid_exec
You must be 'root' or 'locksmith' in order to delete these
files.
The removal of these files will resolve the security
vulnerability immediately.
This procedure will require that the install tool should be run
with the -x option ( continue on error - see Installing
Software with Apollo's Release and Installation Tools, Apollo
order number 008860-A00, chapter 4) for all subsequent
installations until the replacement files have been obtained.
The absence of these files in the authorized areas will
generate an error message during the installation process,
and, if the -x option is not specified when invoking the
installation tool, will terminate the install.
HP/Apollo is creating an incremental software release that
will replace these files with the correctly compiled version of
the suid_exec program. This incremental release will be made
available to software maintenance customers shortly. Those
users not on a HP/Apollo maintenance contract should be
able to order the replacement files as HP/Apollo part number
018669-A00, SR10.2 Incremental Software Release. Once
installed, the replacement files will permit normal installation
of software. They will NOT permit set-id shell scripts to be
run on Domain/OS installations.
The repaired file will also be available as patch_m0170 on
68000-based systems, and patch_p0136 on
DN10000-based systems. These patches are scheduled to
be on the August patch tape. The problem has already been
addressed in the next release of Domain/OS.
Solution:
This file should be deleted IMMEDIATELY from the /etc
directories on all HP/Apollo nodes AND from all authorized
areas on HP/Apollo networks from which software can be
installed.
The files that must be deleted are:
On each node:
//<node>/etc/suid_exec
In each Authorized Area:
<AA>/install/ri.apollo.os.v.10.2/sys5.3/etc/suid_exec
<AA>/install/ri.apollo.os.v.10.2/bsd4.3/etc/suid_exec
<AA>/install/ri.apollo.os.v.10.2.p/sys5.3/etc/suid_exec
<AA>/install/ri.apollo.os.v.10.2.p/bsd4.3/etc/suid_exec
You must be 'root' or 'locksmith' in order to delete these
files.
The removal of these files will resolve the security
vulnerability immediately.
This procedure will require that the install tool should be run
with the -x option ( continue on error - see Installing
Software with Apollo's Release and Installation Tools, Apollo
order number 008860-A00, chapter 4) for all subsequent
installations until the replacement files have been obtained.
The absence of these files in the authorized areas will
generate an error message during the installation process,
and, if the -x option is not specified when invoking the
installation tool, will terminate the install.
HP/Apollo is creating an incremental software release that
will replace these files with the correctly compiled version of
the suid_exec program. This incremental release will be made
available to software maintenance customers shortly. Those
users not on a HP/Apollo maintenance contract should be
able to order the replacement files as HP/Apollo part number
018669-A00, SR10.2 Incremental Software Release. Once
installed, the replacement files will permit normal installation
of software. They will NOT permit set-id shell scripts to be
run on Domain/OS installations.
The repaired file will also be available as patch_m0170 on
68000-based systems, and patch_p0136 on
DN10000-based systems. These patches are scheduled to
be on the August patch tape. The problem has already been
addressed in the next release of Domain/OS.
References
Domain/OS suid_exec Vulnerability
References:
References: