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cvelistGitHub_MCVELIST:CVE-2022-21672
HistoryJan 10, 2022 - 9:00 p.m.

CVE-2022-21672 /etc/pki/tls and /etc/ssl/certs include distrusted certificates in make-ca

2022-01-1021:00:13
CWE-115
GitHub_M
www.cve.org
4
pki misinterpretation
untrusted certificates
mim attack
make-ca-1.10
root user
regenerate store

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

EPSS

0.001

Percentile

48.1%

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.

CNA Affected

[
  {
    "product": "make-ca",
    "vendor": "lfs-book",
    "versions": [
      {
        "status": "affected",
        "version": ">= 0.9, < 1.10"
      }
    ]
  }
]

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

EPSS

0.001

Percentile

48.1%

Related for CVELIST:CVE-2022-21672