Vulnerability Details : CVE-2022-21672
make-ca is a utility to deliver and manage a complete PKI configuration for workstations and servers. Starting with version 0.9 and prior to version 1.10, make-ca misinterprets Mozilla certdata.txt and treats explicitly untrusted certificates like trusted ones, causing those explicitly untrusted certificates trusted by the system. The explicitly untrusted certificates were used by some CAs already hacked. Hostile attackers may perform a MIM attack exploiting them. Everyone using the affected versions of make-ca should upgrade to make-ca-1.10, and run `make-ca -f -g` as the `root` user to regenerate the trusted store immediately. As a workaround, users may delete the untrusted certificates from /etc/pki/tls and /etc/ssl/certs manually (or by a script), but this is not recommended because the manual changes will be overwritten next time running make-ca to update the trusted anchor.
Products affected by CVE-2022-21672
- cpe:2.3:a:linuxfromscratch:make-ca:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-21672
0.13%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 47 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-21672
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:P/A:N |
8.6
|
2.9
|
NIST | |
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |
2.8
|
3.6
|
NIST | |
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |
2.8
|
3.6
|
GitHub, Inc. |
CWE ids for CVE-2022-21672
-
The product misinterprets an input, whether from an attacker or another product, in a security-relevant fashion.Assigned by: security-advisories@github.com (Secondary)
References for CVE-2022-21672
-
https://lists.linuxfromscratch.org/sympa/arc/blfs-support/2022-01/msg00020.html
blfs-support - User Support for BLFS - confirm_actionMailing List;Mitigation;Vendor Advisory
-
https://github.com/lfs-book/make-ca/pull/20
make-ca: use --filter=ca-anchors for all stores by xry111 · Pull Request #20 · lfs-book/make-ca · GitHubPatch;Third Party Advisory
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https://github.com/lfs-book/make-ca/security/advisories/GHSA-m5qh-728v-4xrx
/etc/pki/tls and /etc/ssl/certs include distrusted certificates · Advisory · lfs-book/make-ca · GitHubPatch;Third Party Advisory
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https://github.com/lfs-book/make-ca/issues/19
/etc/pki/tls and /etc/ssl/certs include distrusted certificates · Issue #19 · lfs-book/make-ca · GitHubIssue Tracking;Mitigation;Third Party Advisory
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