High Authentication

CVE-2013-2056 — Red hat network satellite: red hat network satellite: information disclosure via inter-satellite sync (iss) authentication bypass

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.

Published Jul 31, 2013 · Updated Oct 30, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP, GitHub Security Advisories · CNA: redhat

Low

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.

How the score was calculated

EPSS 2.4% (30-day exploitation probability)+13
Technical severity (high)+6

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation

Not confirmed

Not in CISA KEV — an absence of record, not proof it is unexploited.

EPSS FIRST

2.37%

ahead of 84% of scored CVEs · Oct 30, 2026

Affects

Red Hat

Red Hat Network Satellite Server v 5.3 and 3 more

CVSS base

7.5

High · 3 source(s)

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

Identify exposed assets running the affected vendor/product/version combinations (Red Hat Red Hat Network Satellite Server v 5.3, Red Hat Red Hat Network Satellite Server v 5.4, Red Hat Red Hat Network Satellite Server v 5.5…).
The attack is network-based and needs no privileges: restrict exposure (ACLs, VPN, WAF) until patched.
No fix documented in the sources: reduce exposure and monitor the vendor advisory.
Search available logs for exploit probes matching the vulnerability class (authentication), errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Vendor	Product	Versions	Status	Source
Red Hat	Red Hat Network Satellite Server v 5.3	versions not specified by the source	Vulnerable	CVE Program (cve.org) e CISA ADP
Red Hat	Red Hat Network Satellite Server v 5.4	versions not specified by the source	Vulnerable	CVE Program (cve.org) e CISA ADP
Red Hat	Red Hat Network Satellite Server v 5.5	versions not specified by the source	Vulnerable	CVE Program (cve.org) e CISA ADP
Red Hat	Satellite	version 5.3version 5.4version 5.5	Vulnerable	NIST National Vulnerability Database

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Attack vector

Network

Attack complexity

Low

Privileges required

None

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

Score	Version	Severity	Expl.	Impact	Scored by
7.5	CVSS 3.1	High	3.9	3.6	secalert@redhat.com via NIST National Vulnerability Database
7.5	CVSS 3.1	High	—	—	redhat via CVE Program (cve.org) e CISA ADP
5.0	CVSS 2.0	Medium	10.0	2.9	nvd@nist.gov via NIST National Vulnerability Database

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N (score shown at the top: secalert@redhat.com)

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-306 · Missing Authentication for Critical Function

Other CVEs with this weakness →

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

Prioritize edge telemetry for the network-reachable component (proxy, WAF, IDS/IPS).
Review authentication logs: logins without MFA, anomalous sessions and recently created accounts.

web/proxy/WAF logsnetwork IDS/IPSauthentication logs

Timeline

What happened to this CVE, newest first.

2026
Affected products added · red hat/red hat network satellite server v 5.3, red hat/red hat network satellite server v 5.4, red hat/red hat network
Oct 30, 2026 · CVE Program (cve.org) e CISA ADP
Record published
Oct 30, 2026
Affected products added · redhat/satellite
Oct 30, 2026 · NIST National Vulnerability Database
CVSS changed · 7.5
Oct 30, 2026 · NIST National Vulnerability Database
Source status changed · → Modified
Oct 30, 2026 · NIST National Vulnerability Database
Record created in this database
Oct 30, 2026 · Alertas do Telegram
2013
CVE published
Jul 31, 2013 · redhat

Source activity

Repeated readings are counted rather than listed.

2× References added · Oct 30, 2026 – Oct 30, 2026
1× Official description updated · Oct 30, 2026 – Oct 30, 2026

References

7 on the record

rhn.redhat.com/errata/RHSA-2013-0848.html
Vendor Advisory, NIST National Vulnerability Database
secunia.com/advisories/53487
Vendor Advisory, NIST National Vulnerability Database
access.redhat.com/errata/RHSA-2013:0848
vendor-advisory, x_refsource_REDHAT, NIST National Vulnerability Database
github.com/advisories/GHSA-p9rr-x8fh-7586
GitHub Security Advisories
nvd.nist.gov/vuln/detail/CVE-2013-2056
GitHub Security Advisories
www.osvdb.org/93566
NIST National Vulnerability Database
access.redhat.com/security/cve/CVE-2013-2056
vdb-entry, x_refsource_REDHAT, NIST National Vulnerability Database

Elsewhere on this site

Red Hat
every CVE for this vendor

Authentication
same class

CWE-306
other pages naming this weakness

Related CVEs (same products)

High CVE-2026-12542 Foreman: command injection in foreman-tail 29d
Critical CVE-2026-96659 Foreman: excessive permissions for viewer role on preview 29d
High CVE-2026-96658 Foreman: safemode bypass leading to rce 29d
High CVE-2026-12540 Foreman: command injection in foreman-rake errors:fetch_log via request_id parameter 29d
High CVE-2026-12541 Foreman: command injection in foreman-rake database tasks 29d
High CVE-2026-12544 Foreman: ssti and insecure deserialization in foreman-rake configuration 29d

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

No fixed version, patch or mitigation documented.
No CISA SSVC assessment.
No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2013-2056 is "Red hat network satellite: red hat network satellite: information disclosure via inter-satellite sync (iss) authentication bypass", rated High. It affects Red Hat Network Satellite Server v 5.3 (Red Hat); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 7.5 describes technical severity. EPSS 2.37% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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