Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 2 |
CVE-ID | CVE-2017-3142 CVE-2017-3143 |
CWE-ID | CWE-20 |
Exploitation vector | Network |
Public exploit | Public exploit code for vulnerability #2 is available. |
Vulnerable software Subscribe |
ISC BIND Server applications / DNS servers |
Vendor | ISC |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
EUVDB-ID: #VU7257
Risk: Low
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-3142
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to bypass security restrictions on the target system.
The weakness exists due to an error in TSIG authentication of AXFR and NOTIFY requests. A remote attacker who is able to send and receive messages to an authoritative DNS server and who has knowledge of a valid TSIG key name can send specially crafted request packet, bypass authentication and perform unauthorized zone transfers.
Update the affected packages.
ISC BIND: 9.4.0 - 9.11.1-P1
External linkshttp://lists.opensuse.org/opensuse-security-announce/2017-07/msg00007.html
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.
EUVDB-ID: #VU7258
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L/E:P/RL:O/RC:C]
CVE-ID: CVE-2017-3143
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to bypass security restrictions on the target system.
The weakness exists due to an error in TSIG authentication of AXFR requests. A remote attacker who is able to send and receive messages to an authoritative DNS server and who has knowledge of a valid TSIG key name can send specially crafted request packet, manipulate the malicious zone content and accept unauthorized dynamic updates.
Update the affected packages.
ISC BIND: 9.4.0 - 9.11.1-P1
External linkshttp://lists.opensuse.org/opensuse-security-announce/2017-07/msg00007.html
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.