#VU4447 Security restrictions bypass in IBM AIX


Published: 2016-05-16 | Updated: 2017-08-24

Vulnerability identifier: #VU4447

Vulnerability risk: Low

CVSSv3.1: 6.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-3142

CWE-ID: CWE-264

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
IBM AIX
Operating systems & Components / Operating system

Vendor: IBM Corporation

Description
The vulnerability allows a remote attacker to bypass security restrictions on the target system.

The weakness exists due to an error when an attacker can send and receive messages to an authoritative DNS server and has knowledge of a valid TSIG key name. A remote attacker can send a specially crafted request packet, bypass TSIG authentication on AXFR requests and transfer the target zone.

Mitigation
The vulnerability is addressed in the following versions: 6.1.9.7, 6.1.9.8, 6.1.9.9, 7.1.3.7, 7.1.3.8, 7.1.3.9.

Vulnerable software versions

IBM AIX: 6.1.0 - 7.1.4


External links
http://aix.software.ibm.com/aix/efixes/security/bind_advisory16.asc


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.


Latest bulletins with this vulnerability