Multiple vulnerabilities in MediaWiki



| Updated: 2020-12-22
Risk Medium
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2014-2242
CVE-2014-2243
CVE-2014-2244
CWE-ID CWE-79
CWE-362
Exploitation vector Network
Public exploit N/A
Vulnerable software
 MediaWiki
Web applications / CMS

Vendor MediaWiki.org

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Cross-site scripting

EUVDB-ID: #VU41980

Risk: Low

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

CVE-ID: CVE-2014-2242

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data. The vulnerability allows remote attackers to conduct cross-site scripting (XSS) attacks via an SVG upload, as demonstrated by use of a W3C XHTML namespace in conjunction with an IFRAME element.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Install update from vendor's website.

Vulnerable software versions

MediaWiki: 1.1.0 - 1.22.2

CPE2.3 External links

https://lists.wikimedia.org/pipermail/mediawiki-announce/2014-February/000141.html
https://openwall.com/lists/oss-security/2014/02/28/1
https://openwall.com/lists/oss-security/2014/03/01/2
https://www.securityfocus.com/bid/65910
https://bugzilla.redhat.com/show_bug.cgi?id=1071135
https://bugzilla.wikimedia.org/show_bug.cgi?id=60771
https://gerrit.wikimedia.org/r/#/q/7d923a6b53f7fbcb0cbc3a19797d741bf6f440eb,n,z


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) Race condition

EUVDB-ID: #VU41981

Risk: Medium

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

CVE-ID: CVE-2014-2243

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

includes/User.php in MediaWiki before 1.19.12, 1.20.x and 1.21.x before 1.21.6, and 1.22.x before 1.22.3 terminates validation of a user token upon encountering the first incorrect character, which makes it easier for remote attackers to obtain access via a brute-force attack that relies on timing differences in responses to incorrect token guesses.

Mitigation

Install update from vendor's website.

Vulnerable software versions

MediaWiki: 1.1.0 - 1.22.2

CPE2.3 External links

https://lists.wikimedia.org/pipermail/mediawiki-announce/2014-February/000141.html
https://openwall.com/lists/oss-security/2014/02/28/1
https://openwall.com/lists/oss-security/2014/03/01/2
https://bugzilla.redhat.com/show_bug.cgi?id=1071136
https://bugzilla.wikimedia.org/show_bug.cgi?id=61346
https://gerrit.wikimedia.org/r/#/q/I2a9e89120f7092015495e638c6fa9f67adc9b84f,n,z


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) Cross-site scripting

EUVDB-ID: #VU41982

Risk: Low

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

CVE-ID: CVE-2014-2244

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

Vulnerability allows a remote attacker to perform XSS attacks.

The vulnerability is caused by an input validation error in the formatHTML function in includes/api/ApiFormatBase.php in MediaWiki before 1.19.12, 1.20.x and 1.21.x before 1.21.6, and 1.22.x before 1.22.3. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in victim's browser in security context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Install update from vendor's website.

Vulnerable software versions

MediaWiki: 1.1.0 - 1.22.2

CPE2.3 External links

https://lists.wikimedia.org/pipermail/mediawiki-announce/2014-February/000141.html
https://openwall.com/lists/oss-security/2014/02/28/1
https://openwall.com/lists/oss-security/2014/03/01/2
https://www.securityfocus.com/bid/65906
https://bugzilla.redhat.com/show_bug.cgi?id=1071139
https://bugzilla.wikimedia.org/show_bug.cgi?id=61362
https://gerrit.wikimedia.org/r/#/q/Idf985e4e69c2f11778a8a90503914678441cb3fb,n,z


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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