Skip to content
Fencer Intel
medium 6.8

CVE-2020-15720 json

In Dogtag PKI through 10.8.3, the pki.client.PKIConnection class did not enable python-requests certificate validation.

published 6y ago modified 4mo ago also EUVD-2020-7706

cvss
6.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 62%
public exploits
0
none known

Summary

In Dogtag PKI through 10.8.3, the pki.client.PKIConnection class did not enable python-requests certificate validation. Since the verify parameter was hard-coded in all request functions, it was not possible to override the setting. As a result, tools making use of this class, such as the pki-server command, may have been vulnerable to Person-in-the-Middle attacks in certain non-localhost use cases. This is fixed in 10.9.0-b1.

Patch / fix

  • dogtag-pki Debian 11 10.9.1-1

debian advisories DEBIAN-CVE-2020-15720

  • jss RHEL 8 4.7.3-1.module+el8.3.0+8058+d5cd4219
  • xsom RHEL 8 0-19.20110809svn.module+el8.1.0+3366+6dfb954c
  • slf4j RHEL 8 1.7.25-4.module+el8.1.0+3366+6dfb954c
  • pki-ca RHEL 8 10.9.4-1.module+el8.3.0+8058+d5cd4219
  • ldapjdk RHEL 8 4.22.0-1.module+el8.3.0+6784+6e1e4c62
  • pki-kra RHEL 8 10.9.4-1.module+el8.3.0+8058+d5cd4219
  • stax-ex RHEL 8 1.7.7-8.module+el8.2.0+5723+4574fbff
  • bea-stax RHEL 8 1.2.0-16.module+el8.1.0+3366+6dfb954c

red hat advisories RHSA-2020:4847

  • xsom Rocky Linux 8 0-19.20110809svn.module+el8.3.0+53+ea062990
  • slf4j Rocky Linux 8 1.7.25-4.module+el8.5.0+697+f586bb30
  • slf4j Rocky Linux 8 1.7.25-4.module+el8.3.0+74+855e3f5d
  • slf4j Rocky Linux 8 1.7.25-4.module+el8.3.0+133+b8b54b58
  • ldapjdk Rocky Linux 8 4.22.0-1.module+el8.4.0+418+b7ae1d4a
  • stax-ex Rocky Linux 8 1.7.7-8.module+el8.3.0+53+ea062990
  • bea-stax Rocky Linux 8 1.2.0-16.module+el8.3.0+53+ea062990
  • resteasy Rocky Linux 8 3.0.26-3.module+el8.3.0+53+ea062990

rocky linux advisories RLSA-2020:4847

Is CVE-2020-15720 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-15720 updated cvss 6.8

pki: Dogtag's python client does not validate certificates

  • Red Hat Enterprise Linux 6 pki-ca, pki-core, pki-util, pki-setup, pki-common, pki-silent, +7 more
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 7 pki-ca, pki-kra, pki-base, pki-core, pki-tools, pki-server, +3 more
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux AppStream (v. 8) jss 4.7.3-1.module+el8.3.0+8058+d5cd4219, slf4j 1.7.25-4.module+el8.1.0+3366+6dfb954c, pki-ca 10.9.4-1.module+el8.3.0+8058+d5cd4219, stax-ex 1.7.7-8.module+el8.2.0+5723+4574fbff, velocity 1.7-24.module+el8.1.0+3366+6dfb954c, ldapjdk 4.22.0-1.module+el8.3.0+6784+6e1e4c62, +44 more
    fixed: vendor fix RHSA-2020:4847

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.98% chance of exploitation in the next 30 days, higher than 62% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 6.8 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
NVD 2.0 4.0 AV:N/AC:H/Au:N/C:P/I:P/A:N

Classification

Weakness
  • CWE-295 Improper Certificate Validation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.