Ubuntu Security Notice 6948-1 - It was discovered that Salt incorrectly handled crafted web requests. A remote attacker could possibly use this issue to run arbitrary commands. It was discovered that Salt incorrectly created certificates with weak file permissions. It was discovered that Salt incorrectly handled credential validation. A remote attacker could possibly use this issue to bypass authentication.
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Ubuntu Security Notice USN-6948-1
August 08, 2024
salt vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
Summary:
Several security issues were fixed in Salt.
Software Description:
- salt: Infrastructure management built on a dynamic communication bus
Details:
It was discovered that Salt incorrectly handled crafted web requests.
A remote attacker could possibly use this issue to run arbitrary
commands. (CVE-2020-16846)
It was discovered that Salt incorrectly created certificates with weak
file permissions. (CVE-2020-17490)
It was discovered that Salt incorrectly handled credential validation.
A remote attacker could possibly use this issue to bypass authentication.
(CVE-2020-25592)
It was discovered that Salt incorrectly handled crafted process names.
An attacker could possibly use this issue to run arbitrary commands.
This issue only affected Ubuntu 18.04 LTS. (CVE-2020-28243)
It was discovered that Salt incorrectly handled validation of SSL/TLS
certificates. A remote attacker could possibly use this issue to spoof
a trusted entity. (CVE-2020-28972, CVE-2020-35662)
It was discovered that Salt incorrectly handled credential validation.
A remote attacker could possibly use this issue to run arbitrary code.
(CVE-2021-25281)
It was discovered that Salt incorrectly handled crafted paths. A remote
attacker could possibly use this issue to perform directory traversal.
(CVE-2021-25282)
It was discovered that Salt incorrectly handled template rendering. A
remote attacker could possibly this issue to run arbitrary code.
(CVE-2021-25283)
It was discovered that Salt incorrectly handled logging. An attacker
could possibly use this issue to discover credentials. This issue only
affected Ubuntu 18.04 LTS. (CVE-2021-25284)
It was discovered that Salt incorrectly handled crafted web requests.
A remote attacker could possibly use this issue to run arbitrary
commands. This issue only affected Ubuntu 18.04 LTS. (CVE-2021-3148)
It was discovered that Salt incorrectly handled input sanitization.
A remote attacker could possibly use this issue to run arbitrary
commands. (CVE-2021-3197)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 18.04 LTS
salt-common 2017.7.4+dfsg1-1ubuntu18.04.2+esm1
Available with Ubuntu Pro
Ubuntu 16.04 LTS
salt-common 2015.8.8+ds-1ubuntu0.1+esm2
Available with Ubuntu Pro
In general, a standard system update will make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-6948-1
CVE-2020-16846, CVE-2020-17490, CVE-2020-25592, CVE-2020-28243,
CVE-2020-28972, CVE-2020-35662, CVE-2021-25281, CVE-2021-25282,
CVE-2021-25283, CVE-2021-25284, CVE-2021-3148, CVE-2021-3197