Veracode Vulnerability DatabaseVERACODE:5343Disabled Account Bypass
6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
4 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:S/C:P/I:N/A:N
libpam4j is vulnerable to authentication bypass. The authenticate method doesn’t check the status of the users account, allowing any attacker with a valid password to login regardless of if the account has been disabled.
References
access.redhat.com/errata/RHSA-2017:2904
access.redhat.com/errata/RHSA-2017:2905
access.redhat.com/errata/RHSA-2017:2906
bugzilla.redhat.com/show_bug.cgi?id=1503103
github.com/kohsuke/libpam4j/blame/master/src/main/java/org/jvnet/libpam/PAM.java#L127
lists.debian.org/debian-lts-announce/2017/11/msg00008.html
www.debian.org/security/2017/dsa-4025
Related
6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
4 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:S/C:P/I:N/A:N