Vulnerability identifier: #VU44866

Vulnerability risk: Low

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

CVE-ID: CVE-2011-2694

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Samba
Server applications / Directory software, identity management

Vendor: Samba

Description

Vulnerability allows a remote attacker to perform XSS attacks.

The vulnerability is caused by an input validation error in the chg_passwd function in web/swat.c in the Samba Web Administration Tool (SWAT) in Samba 3.x before 3.5.10. A remote authenticated 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

Samba: 3.0.0 - 3.0.37, 3.1.0, 3.2.0 - 3.2.15, 3.3.0 - 3.3.12, 3.4.0 - 3.4.7, 3.5 - 3.5.9

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External links
http://jvn.jp/en/jp/JVN63041502/index.html
http://osvdb.org/74072
http://samba.org/samba/history/samba-3.5.10.html
http://secunia.com/advisories/45393
http://secunia.com/advisories/45488
http://secunia.com/advisories/45496
http://securitytracker.com/id?1025852
http://ubuntu.com/usn/usn-1182-1
http://www.debian.org/security/2011/dsa-2290
http://www.itrc.hp.com/service/cki/docDisplay.do?docId=emr_na-c03008543
http://www.mandriva.com/security/advisories?name=MDVSA-2011:121
http://www.samba.org/samba/security/CVE-2011-2694
http://www.securityfocus.com/bid/48901
http://bugzilla.redhat.com/show_bug.cgi?id=722537
http://bugzilla.samba.org/show_bug.cgi?id=8289
http://exchange.xforce.ibmcloud.com/vulnerabilities/68844

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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.