Bug 716476 - (CVE-2011-2502) CVE-2011-2502 systemtap: insufficient security check when loading uprobes kernel module
CVE-2011-2502 systemtap: insufficient security check when loading uprobes ker...
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
public=20110725,reported=20110623,sou...
: Security
Depends On: 717594 717596 725578
Blocks: 716497
  Show dependency treegraph
 
Reported: 2011-06-24 11:26 EDT by Jan Lieskovsky
Modified: 2016-11-08 11:27 EST (History)
7 users (show)

See Also:
Fixed In Version: systemtap 1.6
Doc Type: Bug Fix
Doc Text:
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Environment:
Last Closed: 2012-02-03 15:44:45 EST
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RHEL 7.3 requirements from Atomic Host:
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Attachments (Terms of Use)
Don't allow path-based auth for uprobes (2.35 KB, patch)
2011-06-25 01:23 EDT, Josh Stone
no flags Details | Diff

  None (edit)
Description Jan Lieskovsky 2011-06-24 11:26:45 EDT
It was found that systemtap runtime tool (staprun) did not properly enforce
the module's path sanity check, when the ad-hoc module instrumentation via
user-space probing with user-specified module path was requested. A local
user, member of the 'stapusr' group could use this flaw to escalate their
privileges.
Comment 1 Jan Lieskovsky 2011-06-24 11:32:22 EDT
This issue did NOT affect the versions of the systemtap package, as shipped
with Red Hat Enterprise Linux 4 and 5 as they do not provide support for
loading of user-space probing modules from user-specified locations yet.

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This issue affects the version of the systemtap package, as shipped with
Red Hat Enterprise Linux 6.

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This issue affects the versions of the systemtap package, as shipped with
Fedora release of 14 and 15.
Comment 3 Josh Stone 2011-06-25 01:23:40 EDT
Created attachment 509874 [details]
Don't allow path-based auth for uprobes
Comment 8 Vincent Danen 2011-07-25 17:44:40 EDT
Created systemtap tracking bugs for this issue

Affects: fedora-all [bug 725578]
Comment 9 errata-xmlrpc 2011-07-25 17:46:37 EDT
This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2011:1088 https://rhn.redhat.com/errata/RHSA-2011-1088.html

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