IBM has a constant vulnerability in Verify Gateway (IVG) that attackers brutally make their way on remote systems.
IVG is software designed for commercial systems through multi-factor authentication functions and predefined credential services. IVG supports a variety of operating systems and platforms, adding Windows, RedHat, Centos, Ubuntu, Debian, AIX and SuSE.
This week, the tech giant issued a series of security warnings for software versions 1.0.0 and 1.0.1, with the highest severity being the disclosure of CVE-2020-4400.
With a CVSS severity score of 7.5, the vulnerability was due to an account lockout mechanism deemed “inadequate” that does not prevent multiple access attempts. In automated brute force attacks, risk actors develop a formula with usernames and passwords until they find the right combinations, and to prevent the bureaucracy of attacks from succeeding, the software includes login restrictions.
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However, the IVG configuration did not meet this standard for time-based one-time passwords (TOTP), and the error “could allow a remote attacker to force account credentials,” according to IBM.
The corrected edition of the software, IVG v1.0.1 for RADIUS and AIX PAM, such as IVG v1.0.2 for Linux PAM and IVG for Windows Login, has now added a throttling mechanism.
IBM also issued a security notice for CVE-2020-4369, a vulnerability in the liked control parts (PAM) of the authentication gateway.
This vulnerability is based on how IVG (AIX PAM and Linux PAM) manages client-side asset encryption. Although PAM allows encryption through the pam_ibm_auth.json file, this is not enabled by default, so users do not forget to manually load the darkening commands.
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As it depends on consumers putting encryption into effect, this can be a potential security threat that you don’t want to exist and that can lead to “storing [of] very sensitive data in transparent text that can be received through a user,” the company said.
Ibm has now added client-per-service encryption on AIX PAM and Linux PAM.
In addition, IBM also addressed CVE-2020-4372, IVG data disclosure factor for RADIUS, AIX PAM, Linux PAM, and Windows Login.
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The vulnerability occurs when running IVG parts with debug tracing. When active, visitor secrets are exposed in plain text in the debug log, adding user names, passwords, and visitor IDs.
IBM has fixed the challenge through visitor secrets when debug tracing is active.
The company recommends that users install the latest IVG updates, now known as IBM Security Verify Gateway.
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