Vulnerability Description
BIND servers are vulnerable if they are running an affected version and are configured to use GSS-TSIG features. In a configuration which uses BIND's default settings the vulnerable code path is not exposed, but a server can be rendered vulnerable by explicitly setting valid values for the tkey-gssapi-keytab or tkey-gssapi-credentialconfiguration options. Although the default configuration is not vulnerable, GSS-TSIG is frequently used in networks where BIND is integrated with Samba, as well as in mixed-server environments that combine BIND servers with Active Directory domain controllers. The most likely outcome of a successful exploitation of the vulnerability is a crash of the named process. However, remote code execution, while unproven, is theoretically possible. Affects: BIND 9.5.0 -> 9.11.27, 9.12.0 -> 9.16.11, and versions BIND 9.11.3-S1 -> 9.11.27-S1 and 9.16.8-S1 -> 9.16.11-S1 of BIND Supported Preview Edition. Also release versions 9.17.0 -> 9.17.1 of the BIND 9.17 development branch
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Isc | Bind | >= 9.5.0, <= 9.11.27 |
| Debian | Debian Linux | 9.0 |
| Fedoraproject | Fedora | 32 |
| Siemens | Sinec Infrastructure Network Services | < 1.0.1.1 |
| Netapp | Cloud Backup | - |
| Netapp | A250 Firmware | - |
| Netapp | A250 | - |
| Netapp | 500F Firmware | - |
| Netapp | 500F | - |
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2021/02/19/1Mailing ListPatchThird Party Advisory
- http://www.openwall.com/lists/oss-security/2021/02/20/2Mailing ListPatchThird Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdfPatchThird Party Advisory
- https://kb.isc.org/v1/docs/cve-2020-8625MitigationVendor Advisory
- https://lists.debian.org/debian-lts-announce/2021/02/msg00029.htmlMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.netapp.com/advisory/ntap-20210319-0001/Third Party Advisory
- https://www.debian.org/security/2021/dsa-4857Third Party Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-21-195/Third Party AdvisoryVDB Entry
- http://www.openwall.com/lists/oss-security/2021/02/19/1Mailing ListPatchThird Party Advisory
- http://www.openwall.com/lists/oss-security/2021/02/20/2Mailing ListPatchThird Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdfPatchThird Party Advisory
- https://kb.isc.org/v1/docs/cve-2020-8625MitigationVendor Advisory
FAQ
What is CVE-2020-8625?
CVE-2020-8625 is a vulnerability with a CVSS score of 8.1 (HIGH). BIND servers are vulnerable if they are running an affected version and are configured to use GSS-TSIG features. In a configuration which uses BIND's default settings the vulnerable code path is not e...
How severe is CVE-2020-8625?
CVE-2020-8625 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-8625?
Check the references section above for vendor advisories and patch information. Affected products include: Isc Bind, Debian Debian Linux, Fedoraproject Fedora, Siemens Sinec Infrastructure Network Services, Netapp Cloud Backup.