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CVE-2015-1843

MEDIUM
4.3NVD

Summary

generated automatically from NVD data

The Red Hat docker package, in versions up to 1.5.0-27, mishandles the --add-registry option by falling back to plain HTTP when an HTTPS connection to the registry fails. A man-in-the-middle attacker able to block HTTPS traffic between client and registry can force this downgrade and capture authentication data and image data. The issue is described as a regression of CVE-2014-5277 and carries a CVSS v2.0 score of 4.3 (MEDIUM).

NVD description

The Red Hat docker package before 1.5.0-28, when using the --add-registry option, falls back to HTTP when the HTTPS connection to the registry fails, which allows man-in-the-middle attackers to conduct downgrade attacks and obtain authentication and image data by leveraging a network position between the client and the registry to block HTTPS traffic. NOTE: this vulnerability exists because of a CVE-2014-5277 regression.

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EPSS · FIRST.org

1.6%probability of exploitation in the next 30 days

Higher than 76% of scored CVEs

EPSS (Exploit Prediction Scoring System) estimates, from observed exploitation activity, how likely a CVE is to be exploited in the next 30 days. It complements CVSS, which measures severity, not likelihood. Score of 2026-10-30, recomputed daily by FIRST.org.

CVSS v2.0 Score

4.3
/ 10.0
MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:N

Information

Published
6 avr. 2015
Updated
17 juin 2026
Status
Modified
Source
secalert@redhat.com

Affected products

redhat dockerAll Docker CVEs →
Versions ≤ 1.5.0-27

Bounds published by NVD: "< 8.4.27" means 8.4.27 is no longer vulnerable. The fixed release to install is in the vendor advisory.

Weaknesses (CWE)

CWE-20

Similar CVEs

Other vulnerabilities of type CWE-20

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