Input validation error in FreeIPA

1) Input validation error

EUVDB-ID: #VU41176

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2013-0336

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

The ipapwd_chpwop function in daemons/ipa-slapi-plugins/ipa-pwd-extop/ipa_pwd_extop.c in the directory server (dirsrv) in FreeIPA before 3.2.0 allows remote attackers to cause a denial of service (crash) via a connection request without a username/dn, related to the 389 directory server.

Mitigation

Install update from vendor's website.

Vulnerable software versions

FreeIPA: 3.0.0 - 3.1.4

External links

http://secunia.com/advisories/52763
http://www.securityfocus.com/bid/58747
http://bugzilla.redhat.com/show_bug.cgi?id=913751
http://exchange.xforce.ibmcloud.com/vulnerabilities/83132
http://fedorahosted.org/freeipa/ticket/3539
http://git.fedorahosted.org/cgit/freeipa.git/commit/?id=7b45e33400355df44e75576ef7f70a39d163bf8e

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.