Multiple vulnerabilities in Webmin

Published: 2012-09-11 | Updated: 2024-02-13

Risk	Medium
Patch available	YES
Number of vulnerabilities	4
CVE-ID	CVE-2012-4893 CVE-2012-2981 CVE-2012-2982 CVE-2012-2983
CWE-ID	CWE-352 CWE-20 CWE-287
Exploitation vector	Network
Public exploit	Public exploit code for vulnerability #3 is available. Public exploit code for vulnerability #4 is available.
Vulnerable software	Webmin Web applications / Remote management & hosting panels
Vendor	Webmin

Security Bulletin

This security bulletin contains information about 4 vulnerabilities.

1) Cross-site request forgery

EUVDB-ID: #VU43565

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2012-4893

CWE-ID: CWE-352 - Cross-Site Request Forgery (CSRF)

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform cross-site request forgery attacks.

The vulnerability exists due to insufficient validation of the HTTP request origin. A remote attacker can trick the victim to visit a specially crafted web page and perform arbitrary actions on behalf of the victim on the vulnerable website.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Webmin: 1.140 - 1.580

CPE2.3

External links

https://americaninfosec.com/research/index.html
https://www.americaninfosec.com/research/dossiers/AISG-12-001.pdf
https://www.kb.cert.org/vuls/id/788478

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) Input validation error

EUVDB-ID: #VU43566

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2012-2981

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote #AU# to read and manipulate data.

Webmin 1.590 and earlier allows remote authenticated users to execute arbitrary Perl code via a crafted file associated with the type (aka monitor type name) parameter.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Webmin: 1.140 - 1.580

CPE2.3

External links

https://americaninfosec.com/research/index.html
https://www.americaninfosec.com/research/dossiers/AISG-12-000.pdf
https://www.kb.cert.org/vuls/id/788478
https://www.securitytracker.com/id?1027507
https://www.xerox.com/download/security/security-bulletin/16287-4d6b7b0c81f7b/cert_XRX13-003_v1.0.pdf
https://github.com/webmin/webmin/commit/ed7365064c189b8f136a9f952062249167d1bd9e

Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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

3) Input validation error

EUVDB-ID: #VU43567

Risk: Low

CVSSv4.0: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:A/U:Clear]

CVE-ID: CVE-2012-2982

CWE-ID: CWE-20 - Improper input validation

Exploit availability: Yes

Description

The vulnerability allows a remote #AU# to read and manipulate data.

file/show.cgi in Webmin 1.590 and earlier allows remote authenticated users to execute arbitrary commands via an invalid character in a pathname, as demonstrated by a | (pipe) character.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Webmin: 1.140 - 1.580

CPE2.3

External links

https://americaninfosec.com/research/index.html
https://www.americaninfosec.com/research/dossiers/AISG-12-001.pdf
https://www.kb.cert.org/vuls/id/788478
https://www.securitytracker.com/id?1027507
https://www.xerox.com/download/security/security-bulletin/16287-4d6b7b0c81f7b/cert_XRX13-003_v1.0.pdf
https://github.com/webmin/webmin/commit/1f1411fe7404ec3ac03e803cfa7e01515e71a213

Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.

4) Improper Authentication

EUVDB-ID: #VU43568

Risk: Medium

CVSSv4.0: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:A/U:Green]

CVE-ID: CVE-2012-2983

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: Yes

Description

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

file/edit_html.cgi in Webmin 1.590 and earlier does not perform an authorization check before showing a file's unedited contents, which allows remote attackers to read arbitrary files via the file field.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Webmin: 1.140 - 1.580

CPE2.3

External links

https://americaninfosec.com/research/index.html
https://www.americaninfosec.com/research/dossiers/AISG-12-002.pdf
https://www.kb.cert.org/vuls/id/788478
https://www.securitytracker.com/id?1027507
https://www.xerox.com/download/security/security-bulletin/16287-4d6b7b0c81f7b/cert_XRX13-003_v1.0.pdf
https://github.com/webmin/webmin/commit/4cd7bad70e23e4e19be8ccf7b9f245445b2b3b80

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. However, a fully functional exploit for this vulnerability is available.