Input validation error in MaraDNS

1) Input validation error

EUVDB-ID: #VU44181

Risk: Medium

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

CVE-ID: CVE-2012-1570

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to manipulate or delete data.

The resolver in MaraDNS before 1.3.0.7.15 and 1.4.x before 1.4.12 overwrites cached server names and TTL values in NS records during the processing of a response to an A record query, which allows remote attackers to trigger continued resolvability of revoked domain names via a "ghost domain names" attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

MaraDNS: 0.0.01 - 1.4.11

CPE2.3

• cpe:2.3:a:sam_trenholme:maradns:0.0.01:*:*:*:*:*:*:*
• cpe:2.3:a:sam_trenholme:maradns:0.0.02:*:*:*:*:*:*:*
• cpe:2.3:a:sam_trenholme:maradns:0.0.03:*:*:*:*:*:*:*

External links

https://osvdb.org/80192
https://secunia.com/advisories/48492
https://www.maradns.org/changelog.html
https://www.openwall.com/lists/oss-security/2012/03/20/1
https://www.openwall.com/lists/oss-security/2012/03/20/10
https://www.securitytracker.com/id?1026821
https://bugzilla.redhat.com/show_bug.cgi?id=804770
https://exchange.xforce.ibmcloud.com/vulnerabilities/74119

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.