Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2009-1384

Improper Authentication

Published: May 28, 2009 | Modified: Apr 09, 2025
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
5 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N
RedHat/V2
2.6 LOW
AV:N/AC:H/Au:N/C:P/I:N/A:N
RedHat/V3
Ubuntu
LOW
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2009-1384
CWEhttps://cwe.mitre.org/data/definitions/287.html

pam_krb5 2.2.14 through 2.3.4, as used in Red Hat Enterprise Linux (RHEL) 5, generates different password prompts depending on whether the user account exists, which allows remote attackers to enumerate valid usernames.

Weakness

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

Affected Software

NameVendorStart VersionEnd Version
Enterprise_linuxRedhat5 (including)5 (including)
Red Hat Enterprise Linux 5RedHatpam_krb5-0:2.2.14-15*
Libpam-krb5Ubuntuartful*
Libpam-krb5Ubuntucosmic*
Libpam-krb5Ubuntudapper*
Libpam-krb5Ubuntudisco*
Libpam-krb5Ubuntuhardy*
Libpam-krb5Ubuntuintrepid*
Libpam-krb5Ubuntujaunty*
Libpam-krb5Ubuntukarmic*
Libpam-krb5Ubuntulucid*
Libpam-krb5Ubuntumaverick*
Libpam-krb5Ubuntunatty*
Libpam-krb5Ubuntuoneiric*
Libpam-krb5Ubuntuprecise*
Libpam-krb5Ubuntuquantal*
Libpam-krb5Ubunturaring*
Libpam-krb5Ubuntusaucy*
Libpam-krb5Ubuntutrusty*
Libpam-krb5Ubuntuutopic*
Libpam-krb5Ubuntuvivid*
Libpam-krb5Ubuntuwily*
Libpam-krb5Ubuntuyakkety*
Libpam-krb5Ubuntuzesty*

Potential Mitigations

References

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