Auth bypass in Red Hat Satellite

CVE-2013-2056

The Inter-Satellite Sync (ISS) operation in Red Hat Network (RHN) Satellite 5.3, 5.4, and 5.5 does not properly check client "authenticity," which allows remote attackers to obtain channel content by skipping the initial authentication call.

Vulnerability class: Broken Authentication

Published 2013-07-31 · last modified 2026-06-16.

CVSS v2 metric

CVSS v2 base score 5.0 (Medium). Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.024 (83.2th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 83.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.024 · newest: 0.024 · change: 0.000

Affected products

Red Hat Satellite — versions 5.3, 5.4, 5.5

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

rhn.redhat.com/errata/RHSA-2013-0848.html (vendor-advisory, Vendor Advisory)
www.osvdb.org/93566 (vdb-entry)
secunia.com/advisories/53487 (Vendor Advisory, third-party-advisory)