Remote code execution in ISC BIND



Published: 2021-02-17
Risk High
Patch available YES
Number of vulnerabilities 1
CVE ID CVE-2020-8625
CWE ID CWE-119
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe
ISC BIND
Server applications / DNS servers

Vendor ISC

Security Advisory

This security advisory describes one high risk vulnerability.

1) Buffer overflow

Risk: High

CVSSv3: 7.1 [CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2020-8625

CWE-ID: CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the SPNEGO implementation in the GSS-TSIG extension. A remote attacker can send a specially crafted DNS request to the server, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

ISC BIND: 9.5.0, 9.5.0-p1, 9.5.0-p2, 9.5.0-p2-w1, 9.5.0-p2-w2, 9.5.0a1, 9.5.0a2, 9.5.0a3, 9.5.0a4, 9.5.0a5, 9.5.0a6, 9.5.0a7, 9.5.0b1, 9.5.0b2, 9.5.0b3, 9.5.0rc1, 9.5.1, 9.5.1-P1, 9.5.1-P2, 9.5.1-P3, 9.5.1b1, 9.5.1b2, 9.5.1b3, 9.5.1rc1, 9.5.1rc2, 9.5.2, 9.5.2-p1, 9.5.2-p2, 9.5.2-p3, 9.5.2-p4, 9.5.2b1, 9.5.2rc1, 9.5.3, 9.5.3b1, 9.5.3rc1, 9.6.0, 9.6.0-P1, 9.6.0a1, 9.6.0b1, 9.6.0rc1, 9.6.0rc2, 9.6.1, 9.6.1-P1, 9.6.1-P2, 9.6.1-P3, 9.6.1b1, 9.6.1rc1, 9.6.2, 9.6.2-p1, 9.6.2-p2, 9.6.2-p3, 9.6.2b1, 9.6.2rc1, 9.6.3, 9.6.3b1, 9.6.3rc1, 9.7.0, 9.7.0-P1, 9.7.0-P2, 9.7.0a1, 9.7.0a2, 9.7.0a3, 9.7.0b1, 9.7.0b2, 9.7.0b3, 9.7.0rc1, 9.7.0rc2, 9.7.1, 9.7.1-P1, 9.7.1-P2, 9.7.1b1, 9.7.1rc1, 9.7.2, 9.7.2-P1, 9.7.2-P2, 9.7.2-P3, 9.7.2b1, 9.7.2rc1, 9.7.3, 9.7.3-P1, 9.7.3-P2, 9.7.3-P3, 9.7.3b1, 9.7.3rc1, 9.7.4, 9.7.4-P1, 9.7.4b1, 9.7.4rc1, 9.7.5, 9.7.5-W1, 9.7.5b1, 9.7.5rc1, 9.7.5rc2, 9.7.6, 9.7.6-P1, 9.7.6-P2, 9.7.6-P3, 9.7.6-P4, 9.7.7, 9.7.7b1, 9.7.7rc1, 9.8.0, 9.8.0 P4, 9.8.0-P1, 9.8.0-P2, 9.8.0-P3, 9.8.0-P4, 9.8.0a1, 9.8.0b1, 9.8.0rc1, 9.8.1, 9.8.1-P1, 9.8.1-rc1, 9.8.1b1, 9.8.1b2, 9.8.1b3, 9.8.1rc1, 9.8.2, 9.8.2-W1, 9.8.2b1, 9.8.2rc1, 9.8.2rc2, 9.8.3, 9.8.3-P1, 9.8.3-P2, 9.8.3-P3, 9.8.3-P4, 9.8.4, 9.8.4-P1, 9.8.4-P2, 9.8.4b1, 9.8.4rc1, 9.8.5, 9.8.5-P1, 9.8.5-P2, 9.8.5b1, 9.8.5b2, 9.8.5rc1, 9.8.5rc2, 9.8.6, 9.8.6-P1, 9.8.6-P2, 9.8.6b1, 9.8.6rc1, 9.8.6rc2, 9.8.7, 9.8.7-P1, 9.8.7-W1, 9.8.7b1, 9.8.7rc1, 9.8.7rc2, 9.8.8, 9.8.8b1, 9.8.8b2, 9.8.8rc1, 9.8.8rc2, 9.8.9, 9.8.9-P2, 9.9.0, 9.9.0-W1, 9.9.0a1, 9.9.0a2, 9.9.0a3, 9.9.0b1, 9.9.0b2, 9.9.0rc1, 9.9.0rc2, 9.9.0rc3, 9.9.0rc4, 9.9.1, 9.9.1-P1, 9.9.1-P2, 9.9.1-P3, 9.9.1-P4, 9.9.2, 9.9.2 P1, 9.9.2-P1, 9.9.2-P2, 9.9.2b1, 9.9.2rc1, 9.9.3, 9.9.3-P1, 9.9.3-P2, 9.9.3-S1, 9.9.3-S1-P1, 9.9.3b1, 9.9.3b2, 9.9.3rc1, 9.9.3rc2, 9.9.4, 9.9.4-65, 9.9.4-72, 9.9.4-P1, 9.9.4-P2, 9.9.4-S1, 9.9.4-S1-P1, 9.9.4-S1rc2, 9.9.4-S3, 9.9.4b1, 9.9.4rc1, 9.9.4rc2, 9.9.5, 9.9.5-P1, 9.9.5-W1, 9.9.5b1, 9.9.5rc1, 9.9.5rc2, 9.9.6, 9.9.6-P1, 9.9.6-P2, 9.9.6b1, 9.9.6b2, 9.9.6rc1, 9.9.6rc2, 9.9.7, 9.9.7-P1, 9.9.7-P2, 9.9.7-P3, 9.9.7-S6, 9.9.7b1, 9.9.7rc1, 9.9.7rc2, 9.9.8, 9.9.8-P1, 9.9.8-P2, 9.9.8-P3, 9.9.8-P4, 9.9.8-S1, 9.9.8-S2, 9.9.8-S3, 9.9.8-S4, 9.9.8-S5, 9.9.8-S6, 9.9.8b1, 9.9.8rc1, 9.9.9, 9.9.9-P1, 9.9.9-P2, 9.9.9-P3, 9.9.9-P4, 9.9.9-P5, 9.9.9-P6, 9.9.9-P8, 9.9.9-S1, 9.9.9-S1rc1, 9.9.9-S2, 9.9.9-S3, 9.9.9-S4, 9.9.9-S5, 9.9.9-S6, 9.9.9-S7, 9.9.9-S8, 9.9.9-S10, 9.9.9b1, 9.9.9b2, 9.9.9rc1, 9.9.10, 9.9.10-P1, 9.9.10-P2, 9.9.10-P3, 9.9.10-S1, 9.9.10-S2, 9.9.10-S3, 9.9.10b1, 9.9.10rc1, 9.9.10rc2, 9.9.10rc3, 9.9.11, 9.9.11-P1, 9.9.11-S1, 9.9.11-S2, 9.9.11b1, 9.9.11rc1, 9.9.11rc2, 9.9.12, 9.9.12-S1, 9.9.12b1, 9.9.12rc1, 9.9.12rc2, 9.9.13, 9.9.13-P1, 9.9.13rc1, 9.9.13rc2, 9.10.0, 9.10.0-P1, 9.10.0-P2, 9.10.0a1, 9.10.0a2, 9.10.0b1, 9.10.0b2, 9.10.0rc1, 9.10.0rc2, 9.10.1, 9.10.1-P1, 9.10.1-P2, 9.10.1b1, 9.10.1b2, 9.10.1rc1, 9.10.1rc2, 9.10.2, 9.10.2-P1, 9.10.2-P2, 9.10.2-P3, 9.10.2-P4, 9.10.2b1, 9.10.2rc1, 9.10.2rc2, 9.10.3, 9.10.3-P1, 9.10.3-P2, 9.10.3-P3 , 9.10.3-P4, 9.10.3b1, 9.10.3rc1, 9.10.4, 9.10.4-P1, 9.10.4-P2, 9.10.4-P3, 9.10.4-P4, 9.10.4-P5, 9.10.4-P6, 9.10.4-P8, 9.10.4-S6, 9.10.4b1, 9.10.4b2, 9.10.4b3, 9.10.4rc1, 9.10.5, 9.10.5-P1, 9.10.5-P2, 9.10.5-P3, 9.10.5-S1, 9.10.5-S2, 9.10.5-S3, 9.10.5-S4, 9.10.5b1, 9.10.5rc1, 9.10.5rc2, 9.10.5rc3, 9.10.6, 9.10.6-P1, 9.10.6-S1, 9.10.6-S2, 9.10.6-S3, 9.10.6b1, 9.10.6rc1, 9.10.6rc2, 9.10.7, 9.10.7-S1, 9.10.7b1, 9.10.7rc1, 9.10.7rc2, 9.10.8, 9.10.8-P1, 9.10.8rc1, 9.10.8rc2, 9.11.0, 9.11.0-P1, 9.11.0-P2, 9.11.0-P3, 9.11.0-P5, 9.11.0a1, 9.11.0a2, 9.11.0a3, 9.11.0b1, 9.11.0b2, 9.11.0b3, 9.11.0rc1, 9.11.0rc2, 9.11.0rc3, 9.11.1, 9.11.1-P1, 9.11.1-P2, 9.11.1-P3, 9.11.1b1, 9.11.1rc1, 9.11.1rc2, 9.11.1rc3, 9.11.2, 9.11.2-P1, 9.11.2b1, 9.11.2rc1, 9.11.2rc2, 9.11.3, 9.11.3-S1, 9.11.3-S2, 9.11.3-S3, 9.11.3b1, 9.11.3rc1, 9.11.3rc2, 9.11.4, 9.11.4-P1, 9.11.4-P2, 9.11.4-S1, 9.11.4rc1, 9.11.4rc2, 9.11.5, 9.11.5-P1, 9.11.5-P2, 9.11.5-P4, 9.11.5-S1, 9.11.5-S2, 9.11.5-S3, 9.11.5-S5, 9.11.5-S6, 9.11.5rc1, 9.11.6, 9.11.6-P1, 9.11.6-S1, 9.11.6rc1, 9.11.7, 9.11.7-S1, 9.11.8, 9.11.8-S1, 9.11.9, 9.11.9-S1, 9.11.10, 9.11.10-S1, 9.11.11, 9.11.11-S1, 9.11.12, 9.11.12-S1, 9.11.13, 9.11.13-S1, 9.11.14, 9.11.14-S1, 9.11.15, 9.11.15-S1, 9.11.16, 9.11.16-S1, 9.11.17, 9.11.17-S1, 9.11.18, 9.11.18-S1, 9.11.19, 9.11.19-S1, 9.11.20, 9.11.20-S1, 9.11.21, 9.11.22, 9.11.22-S1, 9.11.23, 9.11.23-S1, 9.11.24, 9.11.24-S1, 9.11.25, 9.11.25-S1, 9.11.26, 9.11.27, 9.12.0, 9.12.0a0, 9.12.0a1, 9.12.0b1, 9.12.0b2, 9.12.0rc1, 9.12.0rc2, 9.12.0rc3, 9.12.1, 9.12.1-P2, 9.12.1b1, 9.12.1rc1, 9.12.1rc2, 9.12.2, 9.12.2-P1, 9.12.2-P2, 9.12.2rc1, 9.12.2rc2, 9.12.3, 9.12.3-P1, 9.12.3-P2, 9.12.3-P4, 9.12.3rc1, 9.12.4, 9.12.4-P1, 9.12.4-P2, 9.12.4rc1, 9.13.0, 9.13.1, 9.13.2, 9.13.3, 9.13.4, 9.13.5, 9.13.5-W1, 9.13.6, 9.13.7, 9.14.0, 9.14.0rc1, 9.14.0rc2, 9.14.0rc3, 9.14.1, 9.14.2, 9.14.3, 9.14.4, 9.14.5, 9.14.6, 9.14.7, 9.14.8, 9.14.9, 9.14.10, 9.14.11, 9.14.12, 9.15.0, 9.15.1, 9.15.2, 9.15.3, 9.15.4, 9.15.5, 9.15.6, 9.15.7, 9.15.8, 9.16.0, 9.16.1, 9.16.2, 9.16.3, 9.16.4, 9.16.5, 9.16.6, 9.16.7, 9.16.8, 9.16.9, 9.16.10, 9.16.11, 9.17.0, 9.17.1

CPE External links

https://kb.isc.org/docs/cve-2020-8625

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.



###SIDEBAR###