6.8

CVE-2020-15720: dogtagpki Improper Certificate Validation

CVSS: 6.8v3.1MediumModified
AliasesUBUNTU-CVE-2020-15720DEBIAN-CVE-2020-15720
Published 14-07-2020Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-15720 is a medium (CVSS 6.8) Improper Certificate Validation vulnerability in dogtagpki. EPSS estimates a 0.98% chance of exploitation in the next 30 days, higher than 61.6% of scored vulnerabilities.

Overall risk
27/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.8/10
010
Medium · v3.1 (NVD)
EPSS score
0.98%
0%100%
Low · -0.03 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1
RHSA-2020:4847

Timeline

  1. 14-07-2020
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.98%

Chance of exploitation in the next 30 days

Percentile

62%

Versus all other CVEs

30-day change

-0.03 pp

From 1.01% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.98%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • dogtag-pki< 10.9.1-1
Dogtagpki1 product
Ubuntu1 product
  • dogtag-pkiAll versions (No fix recorded)

3 vendors · 3 products

References

6 links