CVE-2013-2056: A flaw was found in Red Hat Network Satellite

This month

HIGH 7.5REMOTEWATCHLISTDOWNGRADE

CVE-2013-2056 is a high-severity flaw (CVSS 7.5) affecting satellite. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A flaw was found in Red Hat Network Satellite. The Inter-Satellite Sync (ISS) operation, which synchronizes data between satellites, does not properly verify the authenticity of clients. This allows remote attackers to bypass the initial authentication process and obtain sensitive channel content. This vulnerability leads to unauthorized information disclosure.

Why this priority

High severity
Remotely exploitable, no login, no user action
On your watchlist

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.4% (top 16%)
CISA exploited list	No
Weakness	CWE-306, CWE-287
Published	2013-07-31
Last modified	2026-10-30

Publisher (CNA): Red Hat, Inc. · Vendor: redhat

Last updated 2026-10-30 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2013-07-31 13:20 UTCPublished CVE record published
2026-10-30 17:17 UTCUpdated Record last modified

redhat satellite DOWNGRADE

Affected: 5.3 · 5.4 · 5.5

Fixed in: no fixed release known

Safe to downgrade to: a release before 5.3

1. Check installed version

apt-cache policy satellite || rpm -q satellite || satellite --version

2. No fixed release: DOWNGRADE to a release before 5.3 (Debian / Ubuntu)

apt-cache madison satellite sudo apt install satellite=<VERSION_BEFORE_5.3> sudo apt-mark hold satellite

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list satellite sudo dnf downgrade satellite-<VERSION_BEFORE_5.3> sudo dnf versionlock add satellite

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2013-2056?

satellite: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2013-2056 being exploited?

CVE-2013-2056 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2013-2056 affect?

CVE-2013-2056 affects satellite. Severity is high (CVSS 7.5). A flaw was found in Red Hat Network Satellite. The Inter-Satellite Sync (ISS) operation, which synchronizes data between satellites, does not properly verify the authenticity of clients. This allows remote attackers to bypass the initial au

How urgent is CVE-2013-2056?

Priority 57/100. High severity; Remotely exploitable, no login, no user action; On your watchlist

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References

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