Vulnerability · Published Feb 18, 2022 · Assigned by redhat
CVE-2020-25719
High 7.2
In plain English
A high-severity improper authentication in samba. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.7% (higher than 77% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.2High
Exploit odds (30 days)1.7%top 22.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A flaw was found in the way Samba, as an Active Directory Domain Controller, implemented Kerberos name-based authentication. The Samba AD DC, could become confused about the user a ticket represents if it did not strictly require a Kerberos PAC and always use the SIDs found within. The result could include total domain compromise.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | bind-dyndb-ldap | 11.6-2.module_el8.5.0+2603+92118e57 | ALSA-2021:5142 |
| AlmaLinux:8 | custodia | 0.6.0-3.module_el8.6.0+2881+2f24dc92 | ALSA-2021:5142 |
| AlmaLinux:8 | custodia | 0.6.0-3.module_el8.5.0+2603+92118e57 | ALSA-2021:5142 |
| AlmaLinux:8 | ipa-client | 4.9.6-10.module_el8.5.0+2603+92118e57 | ALSA-2021:5142 |
| AlmaLinux:8 | ipa-client-common | 4.9.6-10.module_el8.5.0+2603+92118e57 | ALSA-2021:5142 |
| AlmaLinux:8 | ipa-client-epn | 4.9.6-10.module_el8.5.0+2603+92118e57 | ALSA-2021:5142 |
| AlmaLinux:8 | ipa-client-samba | 4.9.6-10.module_el8.5.0+2603+92118e57 | ALSA-2021:5142 |
| AlmaLinux:8 | ipa-common | 4.9.6-10.module_el8.5.0+2603+92118e57 | ALSA-2021:5142 |
| AlmaLinux:8 | ipa-healthcheck | 0.7-6.module_el8.5.0+2603+92118e57 | ALSA-2021:5142 |
| AlmaLinux:8 | ipa-healthcheck-core | 0.7-6.module_el8.5.0+2603+92118e57 | ALSA-2021:5142 |
| AlmaLinux:8 | ipa-python-compat | 4.9.6-10.module_el8.5.0+2603+92118e57 | ALSA-2021:5142 |
| AlmaLinux:8 | ipa-selinux | 4.9.6-10.module_el8.5.0+2603+92118e57 | ALSA-2021:5142 |
| AlmaLinux:8 | ipa-server | 4.9.6-10.module_el8.5.0+2603+92118e57 | ALSA-2021:5142 |
| AlmaLinux:8 | ipa-server-common | 4.9.6-10.module_el8.5.0+2603+92118e57 | ALSA-2021:5142 |
| AlmaLinux:8 | ipa-server-dns | 4.9.6-10.module_el8.5.0+2603+92118e57 | ALSA-2021:5142 |
| AlmaLinux:8 | ipa-server-trust-ad | 4.9.6-10.module_el8.5.0+2603+92118e57 | ALSA-2021:5142 |
| AlmaLinux:8 | opendnssec | 2.1.7-1.module_el8.5.0+2603+92118e57 | ALSA-2021:5142 |
| AlmaLinux:8 | opendnssec | 2.1.7-1.module_el8.6.0+2881+2f24dc92 | ALSA-2021:5142 |
| AlmaLinux:8 | python3-custodia | 0.6.0-3.module_el8.6.0+2881+2f24dc92 | ALSA-2021:5142 |
| AlmaLinux:8 | python3-custodia | 0.6.0-3.module_el8.5.0+2603+92118e57 | ALSA-2021:5142 |
| AlmaLinux:8 | python3-ipaclient | 4.9.6-10.module_el8.5.0+2603+92118e57 | ALSA-2021:5142 |
| AlmaLinux:8 | python3-ipalib | 4.9.6-10.module_el8.5.0+2603+92118e57 | ALSA-2021:5142 |
| AlmaLinux:8 | python3-ipaserver | 4.9.6-10.module_el8.5.0+2603+92118e57 | ALSA-2021:5142 |
| AlmaLinux:8 | python3-ipatests | 4.9.6-10.module_el8.5.0+2603+92118e57 | ALSA-2021:5142 |
| AlmaLinux:8 | python3-jwcrypto | 0.5.0-1.module_el8.5.0+2603+92118e57 | ALSA-2021:5142 |
| AlmaLinux:8 | python3-jwcrypto | 0.5.0-1.module_el8.6.0+2881+2f24dc92 | ALSA-2021:5142 |
| AlmaLinux:8 | python3-jwcrypto | 0.5.0-1.module_el8.6.0+2737+7e73ea90 | ALSA-2021:5142 |
| AlmaLinux:8 | python3-kdcproxy | 0.4-5.module_el8.5.0+2603+92118e57 | ALSA-2021:5142 |
| AlmaLinux:8 | python3-kdcproxy | 0.4-5.module_el8.6.0+2881+2f24dc92 | ALSA-2021:5142 |
| AlmaLinux:8 | python3-pyusb | 1.0.0-9.module_el8.5.0+2603+92118e57 | ALSA-2021:5142 |
| AlmaLinux:8 | python3-pyusb | 1.0.0-9.module_el8.6.0+2881+2f24dc92 | ALSA-2021:5142 |
| AlmaLinux:8 | python3-pyusb | 1.0.0-9.module_el8.6.0+2737+7e73ea90 | ALSA-2021:5142 |
| AlmaLinux:8 | python3-qrcode | 5.1-12.module_el8.5.0+2603+92118e57 | ALSA-2021:5142 |
| AlmaLinux:8 | python3-qrcode | 5.1-12.module_el8.6.0+2881+2f24dc92 | ALSA-2021:5142 |
| AlmaLinux:8 | python3-qrcode | 5.1-12.module_el8.6.0+2737+7e73ea90 | ALSA-2021:5142 |
| AlmaLinux:8 | python3-qrcode-core | 5.1-12.module_el8.5.0+2603+92118e57 | ALSA-2021:5142 |
| AlmaLinux:8 | python3-qrcode-core | 5.1-12.module_el8.6.0+2737+7e73ea90 | ALSA-2021:5142 |
| AlmaLinux:8 | python3-qrcode-core | 5.1-12.module_el8.6.0+2881+2f24dc92 | ALSA-2021:5142 |
| AlmaLinux:8 | python3-yubico | 1.3.2-9.module_el8.6.0+2737+7e73ea90 | ALSA-2021:5142 |
| AlmaLinux:8 | python3-yubico | 1.3.2-9.module_el8.6.0+2881+2f24dc92 | ALSA-2021:5142 |
| AlmaLinux:8 | python3-yubico | 1.3.2-9.module_el8.5.0+2603+92118e57 | ALSA-2021:5142 |
| AlmaLinux:8 | slapi-nis | 0.56.6-4.module_el8.6.0+2881+2f24dc92 | ALSA-2021:5142 |
| AlmaLinux:8 | slapi-nis | 0.56.6-4.module_el8.5.0+2603+92118e57 | ALSA-2021:5142 |
| AlmaLinux:8 | softhsm | 2.6.0-5.module_el8.5.0+2603+92118e57 | ALSA-2021:5142 |
| AlmaLinux:8 | softhsm | 2.6.0-5.module_el8.6.0+2881+2f24dc92 | ALSA-2021:5142 |
| AlmaLinux:8 | softhsm-devel | 2.6.0-5.module_el8.6.0+2881+2f24dc92 | ALSA-2021:5142 |
| AlmaLinux:8 | softhsm-devel | 2.6.0-5.module_el8.5.0+2603+92118e57 | ALSA-2021:5142 |
| Alpine:v3.20 | samba | 4.15.2-r0 | ALPINE-CVE-2020-25719 |
| Alpine:v3.21 | samba | 4.15.2-r0 | ALPINE-CVE-2020-25719 |
| Alpine:v3.22 | samba | 4.15.2-r0 | ALPINE-CVE-2020-25719 |
| Alpine:v3.23 | samba | 4.15.2-r0 | ALPINE-CVE-2020-25719 |
| Alpine:v3.24 | samba | 4.15.2-r0 | ALPINE-CVE-2020-25719 |
| Debian:12 | samba | 2:4.13.14+dfsg-1 | DEBIAN-CVE-2020-25719 |
| Debian:13 | samba | 2:4.13.14+dfsg-1 | DEBIAN-CVE-2020-25719 |
| Debian:14 | samba | 2:4.13.14+dfsg-1 | DEBIAN-CVE-2020-25719 |
| Rocky Linux:8 | bind-dyndb-ldap | 0:11.6-2.module+el8.4.0+429+6bd33fea | RLSA-2021:5142 |
| Rocky Linux:8 | custodia | 0:0.6.0-3.module+el8.4.0+429+6bd33fea | RLSA-2021:5142 |
| Rocky Linux:8 | ipa | 0:4.9.6-10.module+el8.5.0+719+4f06efb6 | RLSA-2021:5142 |
| Rocky Linux:8 | ipa-healthcheck | 0:0.7-6.module+el8.5.0+674+69615a50 | RLSA-2021:5142 |
| Rocky Linux:8 | opendnssec | 0:2.1.7-1.module+el8.4.0+429+6bd33fea | RLSA-2021:5142 |
| Rocky Linux:8 | python-jwcrypto | 0:0.5.0-1.module+el8.4.0+429+6bd33fea | RLSA-2021:5142 |
| Rocky Linux:8 | python-jwcrypto | 0:0.5.0-1.1.module+el8.7.0+1074+aae18f3a | RLSA-2021:5142 |
| Rocky Linux:8 | python-kdcproxy | 0:0.4-5.module+el8.3.0+244+0b2ae752 | RLSA-2021:5142 |
| Rocky Linux:8 | python-qrcode | 0:5.1-12.module+el8.4.0+429+6bd33fea | RLSA-2021:5142 |
| Rocky Linux:8 | python-yubico | 0:1.3.2-9.module+el8.4.0+429+6bd33fea | RLSA-2021:5142 |
| Rocky Linux:8 | python-yubico | 0:1.3.2-9.1.module+el8.7.0+1074+aae18f3a | RLSA-2021:5142 |
| Rocky Linux:8 | pyusb | 0:1.0.0-9.1.module+el8.7.0+1074+aae18f3a | RLSA-2021:5142 |
| Rocky Linux:8 | pyusb | 0:1.0.0-9.module+el8.4.0+429+6bd33fea | RLSA-2021:5142 |
| Rocky Linux:8 | slapi-nis | 0:0.56.6-4.module+el8.6.0+796+128eec25 | RLSA-2021:5142 |
| Rocky Linux:8 | slapi-nis | 0:0.56.6-4.module+el8.5.0+675+61f67439 | RLSA-2021:5142 |
| Rocky Linux:8 | softhsm | 0:2.6.0-5.module+el8.4.0+429+6bd33fea | RLSA-2021:5142 |
| Ubuntu:22.04:LTS | samba | 2:4.13.14+dfsg-0ubuntu1 | UBUNTU-CVE-2020-25719 |
Affected products (as reported)
Weakness: CWE-287