CVE-2003-0138
First published: Fri Mar 21 2003(Updated: )
Version 4 of the Kerberos protocol (krb4), as used in Heimdal and other packages, allows an attacker to impersonate any principal in a realm via a chosen-plaintext attack.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| MIT Kerberos 5 | =4 |
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Reference Links
- http://www.debian.org/security/2003/dsa-266
- http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2003-004-krb4.txt
- http://www.kb.cert.org/vuls/id/623217
- http://www.debian.org/security/2003/dsa-269
- http://www.debian.org/security/2003/dsa-273
- http://www.redhat.com/support/errata/RHSA-2003-051.html
- http://www.redhat.com/support/errata/RHSA-2003-052.html
- http://www.redhat.com/support/errata/RHSA-2003-091.html
- http://www.securityfocus.com/bid/7113
- http://marc.info/?l=bugtraq&m=104791775804776&w=2
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A248
- http://www.securityfocus.com/archive/1/316960/30/25250/threaded
Frequently Asked Questions
What is the severity of CVE-2003-0138?
CVE-2003-0138 is considered a high-severity vulnerability due to the potential for an attacker to impersonate any principal.
How do I fix CVE-2003-0138?
To fix CVE-2003-0138, upgrade to a version of Kerberos that does not include the vulnerable krb4 implementation.
What systems are affected by CVE-2003-0138?
CVE-2003-0138 affects systems using Version 4 of the Kerberos protocol, specifically implementations that utilize krb4.
What exploitation methods apply to CVE-2003-0138?
CVE-2003-0138 can be exploited through a chosen-plaintext attack, allowing an attacker to impersonate any principal in the realm.
Is CVE-2003-0138 still a concern for modern systems?
While CVE-2003-0138 primarily affects older versions of Kerberos, any legacy systems still using krb4 may still be vulnerable.
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