Multiple vulnerabilities in Joomla!



Risk High
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2017-16634
CVE-2017-16633
CWE-ID CWE-200
CWE-287
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Joomla!
Web applications / CMS

Vendor Joomla!

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Sensitive information disclosure

EUVDB-ID: #VU9121

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: N/A

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

Exploit availability: No

Description

The vulnerability allows a remote attacker to obtain user credentials.

The vulnerability exists due to improper input sanitization in the LDAP authentication plugin. A remote attacker can gain disclose usernames and passwords.

The vulnerability is a result of the incomplete patch for Sensitive information disclosure vulnerability (CVE-2017-14596).

Mitigation

Update to version 3.8.2.

Vulnerable software versions

Joomla!: 1.5 - 3.8.1

CPE2.3 External links

https://developer.joomla.org/security-centre.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) Authentication bypass

EUVDB-ID: #VU9122

Risk: High

CVSSv4.0: 7.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2017-16634

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to unspecified vulnerability, which could lead to bypass a user's 2-factor-authentication method.

Mitigation

Update to version 3.8.2.

Vulnerable software versions

Joomla!: 3.2.0 - 3.8.1

CPE2.3 External links

https://developer.joomla.org/security-centre.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.

3) Information disclosure

EUVDB-ID: #VU9123

Risk: Low

CVSSv4.0: 2.7 [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:U/U:Clear]

CVE-ID: CVE-2017-16633

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

Exploit availability: No

Description

The vulnerability allows a remote attacker to obtain potentially sensitive information.

The vulnerability exists due to a logic error within com_fields. A remote attacker can obtain information about a site's custom field.

Mitigation

Update to version 3.8.2.

Vulnerable software versions

Joomla!: 3.7.0 - 3.8.1

CPE2.3 External links

https://developer.joomla.org/security-centre.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.



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