Multiple vulnerabilities in Webmin

1) Brute-force attack

EUVDB-ID: #VU344

Risk: Low

CVSSv3.1: 3.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote attacker to hide evidence of brute-force attack.

The vulnerability is caused by an error within software, which failed to record unsuccessful login attempts. An attacker might be able to carry out a brute-force attack unnoticed.

Mitigation

Update to the latest version 1.810:
http://www.webmin.com/download.html

Vulnerable software versions

Webmin: 1.801

External links

http://www.webmin.com/changes.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Security restrictions bypass

EUVDB-ID: #VU343

Risk: Low

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote user to bypass certain security restrictions.

The vulnerability exists due to unspecified error in the new Authentic theme. A remote authenticated user can bypass certain security restrictions.

Successful exploitation of the vulnerability may allow an attacker to bypass certain security restrictions.

Mitigation

Update to the latest version 1.810:
http://www.webmin.com/download.html

Vulnerable software versions

Webmin: 1.801

External links

http://www.webmin.com/changes.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.