Bug 1927426 (CVE-2019-25018) - CVE-2019-25018 krb5-appl: Improper directory name validation allows malicious server to bypass access restrictions
Summary: CVE-2019-25018 krb5-appl: Improper directory name validation allows malicious...
Keywords:
Status: CLOSED WONTFIX
Alias: CVE-2019-25018
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
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Depends On:
Blocks: 1927427
TreeView+ depends on / blocked
 
Reported: 2021-02-10 17:12 UTC by Michael Kaplan
Modified: 2021-02-10 22:09 UTC (History)
3 users (show)

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Last Closed: 2021-02-10 22:09:55 UTC
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Description Michael Kaplan 2021-02-10 17:12:42 UTC 
In the rcp client in MIT krb5-appl through 1.0.3, malicious servers could bypass intended access restrictions via the filename of . or an empty filename, similar to CVE-2018-20685 and CVE-2019-7282. The impact is modifying the permissions of the target directory on the client side. NOTE: MIT krb5-appl is not supported upstream. The affected code was removed from the supported MIT Kerberos 5 (aka krb5) product many years ago, at version 1.8.
Comment 1 Michael Kaplan 2021-02-10 17:12:45 UTC 
External References:

https://bugzilla.suse.com/show_bug.cgi?id=1131109
Comment 2 Product Security DevOps Team 2021-02-10 22:09:55 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2019-25018
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