Multiple vulnerabilities in Samba

1) Cross-site request forgery

EUVDB-ID: #VU44865

Risk: Medium

CVSSv3.1: 6.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C]

CVE-ID: CVE-2011-2522

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

Exploit availability: Yes

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

Samba: 3.0.0 - 3.5.9

External links

http://jvn.jp/en/jp/JVN29529126/index.html
http://marc.info/?l=bugtraq&m=133527864025056&w=2
http://osvdb.org/74071
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://securityreason.com/securityalert/8317
http://securitytracker.com/id?1025852
http://ubuntu.com/usn/usn-1182-1
http://www.debian.org/security/2011/dsa-2290
http://www.exploit-db.com/exploits/17577
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-2011-2522
http://www.securityfocus.com/bid/48899
http://bugzilla.redhat.com/show_bug.cgi?id=721348
http://bugzilla.samba.org/show_bug.cgi?id=8290
http://exchange.xforce.ibmcloud.com/vulnerabilities/68843

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

2) Cross-site scripting

EUVDB-ID: #VU44866

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 - 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 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 - 3.5.9

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

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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