Skip to content
Fencer Vulns
medium 5.4

CVE-2020-25680 json

A flaw was found in JBCS httpd in version 2.4.37 SP3, where it uses a back-end worker SSL certificate with the keystore file's ID is 'unkno…

published 2021-01-07 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-18342

cvss
5.4
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 26%
public exploits
0
none known

Summary

A flaw was found in JBCS httpd in version 2.4.37 SP3, where it uses a back-end worker SSL certificate with the keystore file's ID is 'unknown'. The validation of the certificate whether CN and hostname are matching stopped working and allow connecting to the back-end work. The highest threat from this vulnerability is to data integrity.

Patch / fix

  • jbcs-httpd24-apr jboss core services 1 1.6.3-104.jbcs.el6
  • jbcs-httpd24-apr jboss core services 1 1.6.3-104.jbcs.el7
  • jbcs-httpd24-curl jboss core services 1 7.64.1-44.jbcs.el6
  • jbcs-httpd24-curl jboss core services 1 7.64.1-44.jbcs.el7
  • jbcs-httpd24-httpd jboss core services 1 2.4.37-64.jbcs.el6
  • jbcs-httpd24-httpd jboss core services 1 2.4.37-64.jbcs.el7
  • jbcs-httpd24-brotli jboss core services 1 1.0.6-38.jbcs.el6
  • jbcs-httpd24-brotli jboss core services 1 1.0.6-38.jbcs.el7

red hat advisories RHSA-2020:4384

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-2020-25680 updated cvss 3.1

httpd: allow connecting via SSL to a backend worker when the backend keystore file's ID is 'unknown'

  • Red Hat JBoss Core Services on RHEL 6 Server jbcs-httpd24-apr 1.6.3-104.jbcs.el6, jbcs-httpd24-curl 7.64.1-44.jbcs.el6, jbcs-httpd24-brotli 1.0.6-38.jbcs.el6, jbcs-httpd24-httpd 2.4.37-64.jbcs.el6, jbcs-httpd24-jansson 2.11-53.jbcs.el6, jbcs-httpd24-mod_md 2.0.8-30.jbcs.el6, +26 more Red Hat JBoss Core Services on RHEL 7 Server jbcs-httpd24-apr 1.6.3-104.jbcs.el7, jbcs-httpd24-curl 7.64.1-44.jbcs.el7, jbcs-httpd24-brotli 1.0.6-38.jbcs.el7, jbcs-httpd24-httpd 2.4.37-64.jbcs.el7, jbcs-httpd24-jansson 2.11-53.jbcs.el7, jbcs-httpd24-mod_md 2.0.8-30.jbcs.el7, +27 more
    fixed: vendor fix RHSA-2020:4384

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

0.33% chance of exploitation in the next 30 days, higher than 26% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
NVD 2.0 5.5 AV:N/AC:L/Au:S/C:P/I:P/A:N

Affected products

  • n/a JBCS httpd

Classification

Weakness
  • CWE-295 Improper Certificate Validation

References

Sources

Fencer Vulns 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.