CVE-2016-4422

The pam_sm_authenticate function in pam_sshauth.c in libpam-sshauth might allow context-dependent attackers to bypass authentication or gain privileges via a…

published May 6, 2016

CVSS
—
EPSS
2%
Percentile
78.2
In the wild
Unconfirmed
What it is

⚠️ A crafty context-dependent loophole in libpam-sshauth could let attackers bypass authentication. It’s like a secret backdoor to your house that only a few know about! 🔑 Think of it as a security checkpoint at a concert where a few sneaky attendees manage to slip past the guards without a ticket. The pam_sm_authenticate function misses a critical check, allowing unwanted access through valid system accounts. If exploited, an attacker could gain unauthorized access to sensitive user accounts, potentially elevating their privileges and wreaking havoc on your system. The consequences could be significant, leading to data leaks or manipulation, especially if they gain control over administrative accounts.

Put simply

Think of it as a security checkpoint at a concert where a few sneaky attendees manage to slip past the guards without a ticket. The pam_sm_authenticate function misses a critical check, allowing unwanted access through valid system accounts. This vulnerability arises in the pam_sm_authenticate function of libpam-sshauth, which might allow attackers to bypass standard authentication mechanisms by exploiting specific context conditions.

What to do

If exploited, an attacker could gain unauthorized access to sensitive user accounts, potentially elevating their privileges and wreaking havoc on your system. The consequences could be significant, leading to data leaks or manipulation, especially if they gain control over administrative accounts. To mitigate this issue, update to the latest version of libpam-sshauth where this vulnerability has been addressed. Additionally, review your authentication configurations and consider implementing multi-factor authentication for an extra layer of security. You've got this! With these steps, you'll be on your way to securing your system in no time. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01803 · 78.2th percentile
Published
2016-05-06T17:00Z
EPSS history
Timeline
  • 06 MAY 17:00Z
    The pam_sm_authenticate function in pam_sshauth.c in libpam-sshauth might allow context-dependent attackers to bypass authentication or gain privileges via a…
    cvelistv5