CVE-2008-1845: High severity miros bsd vulnerability

Published Apr 16, 2008
·
Updated

The Korn shell (aka mksh) before R33d on MirOS (aka MirBSD) does not flush the tty's I/O when invoking mksh in a new terminal, which allows local users to gain privileges by opening a virtual terminal and entering command sequences, which might later be executed in opportunistic circumstances by a different user who launches mksh and specifies that terminal with the -T option.

Affected Software

3 affected components
MirBSD MirOS<=33
MirBSD MirOS=33-b
MirBSD MirOS=33-a

Event History

Apr 16, 2008
CVE Published
via MITRE·05:00 PM
Data Sourced
via MITRE·05:00 PM
Description
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Frequently Asked Questions

1

What is the severity of CVE-2008-1845?

CVE-2008-1845 has a moderate severity rating due to potential local privilege escalation.

2

How do I fix CVE-2008-1845?

To resolve CVE-2008-1845, update the Korn shell to version R33d or higher on MirOS.

3

Who is affected by CVE-2008-1845?

CVE-2008-1845 affects local users running the Korn shell on MirOS versions prior to R33d.

4

What kind of exploit does CVE-2008-1845 allow?

CVE-2008-1845 allows local users to gain elevated privileges through unflushed tty I/O.

5

What should I do if I cannot update to fix CVE-2008-1845?

If unable to update, restrict access to the Korn shell or use an alternative shell to mitigate the risk of CVE-2008-1845.

Contact

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