CVE-2017-12197: Improper Input Validation in libpam4j
Summary
CVE-2017-12197: Improper Input Validation in libpam4j. Affects org.kohsuke:libpam4j versions < 1.10. Fixed in 1.10. How to fix ↓
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Background
libpam4j is a library that provides Java bindings for the Pluggable Authentication Modules (PAM) framework. PAM is a security mechanism used in Unix-like operating systems to authenticate users and enforce security policies. libpam4j allows Java applications to interact with PAM and perform authentication and authorization tasks. However, prior to version 1.10, libpam4j did not properly validate user accounts during authentication. This vulnerability could allow a user with a valid password for a disabled account to bypass security restrictions and potentially access sensitive information.
Vulnerability Detail
The vulnerability in libpam4j arises from the improper input validation of user accounts during authentication. When a user attempts to authenticate with a disabled account, the library fails to properly validate the account status and allows the authentication process to proceed. This can lead to unauthorized access to sensitive information or the execution of unauthorized actions. The vulnerability has a CVSS score of 6.5, indicating a moderate severity level.
How To Fix
Minimum fixed version
1.10
This is the first release that contains the fix.
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Workaround
There is no known workaround for this vulnerability. It is essential to upgrade to the fixed version of libpam4j to mitigate the risk of exploitation.
Conclusion
In conclusion, the vulnerability in libpam4j prior to version 1.10 allows users with valid passwords for disabled accounts to bypass security restrictions. This can lead to unauthorized access to sensitive information. To mitigate this risk, it is crucial to upgrade to the fixed version of libpam4j. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
libpam4j is a library that provides Java bindings for the Pluggable Authentication Modules (PAM) framework. It allows Java applications to interact with PAM and perform authentication and authorization tasks.
The vulnerability allows a user with a valid password for a disabled account to bypass security restrictions and potentially access sensitive information.
The CVSS score of this vulnerability is 6.5, indicating a moderate severity level.
No, there is no known workaround for this vulnerability. It is necessary to upgrade to the fixed version of libpam4j.
To fix this vulnerability, it is recommended to upgrade to libpam4j version 1.10 or later.
