CVE-2023-4320VulnerabilityPublished 18 Dec 2023Updated 20 Nov 2025

CVE-2023-4320: Red Hat Satellite 6.15 for RHEL 8 · Insufficient Session Expiration

Affects Red Hat Satellite 6.15 for RHEL 8Source CVE Database V5

Not known to be exploited · CVSS 7.6 High.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 3.1 base score

7.6High

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.6% chance of exploitation in 30 days – higher than 51% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L

Attack Vector: Network
Attack Complexity: Low
Privileges Required: Low
User Interaction: None
Scope: Unchanged
Confidentiality: Low
Integrity: High
Availability: Low

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: Low: The attacker is authorized with (i.e., requires) privileges that provide basic user capabilities that could normally affect only settings and files owned by a user. Alternatively, an attacker with Low privileges may have the ability to cause an impact only to non-sensitive resources.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: Low: There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is limited. The information disclosure does not cause a direct, serious loss to the impacted component.
Integrity: High: There is a total loss of integrity, or a complete loss of protection. For example, the attacker is able to modify any/all files protected by the impacted component. Alternatively, only some files can be modified, but malicious modification would present a direct, serious consequence to the impacted component.
Availability: Low: Performance is reduced or there are interruptions in resource availability. Even if repeated exploitation of the vulnerability is possible, the attacker does not have the ability to completely deny service to legitimate users. The resources in the impacted component are either partially available all of the time, or fully available only some of the time, but overall there is no direct, serious consequence to the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 18 Dec 2023
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

AI-suggested

1. Monitor Red Hat’s official security advisories and apply patches or updates for Red Hat Satellite 6.15 as soon as they become available to address CVE-2023-4320. 2. Conduct an immediate audit of all existing personal access tokens within Red Hat Satellite environments to identify any tokens with abnormally long or indefinite expiration periods and revoke suspicious tokens. 3. Restrict the ability to create personal access tokens to only trusted administrators and enforce strict role-based access controls (RBAC) to minimize the risk of token misuse. 4. Implement enhanced logging and monitoring of token creation and usage activities to detect anomalous behavior indicative of exploitation attempts. 5. Consider integrating multi-factor authentication (MFA) for access to Red Hat Satellite management interfaces to add an additional security layer. 6. Review and harden network access controls to limit exposure of Red Hat Satellite servers to only necessary management networks and trusted IP ranges. 7. Educate system administrators about the risks associated with indefinite token validity and the importance of timely token revocation and rotation.

Description

An arithmetic overflow flaw was found in Satellite when creating a new personal access token. This flaw allows an attacker who uses this arithmetic overflow to create personal access tokens that are valid indefinitely, resulting in damage to the system's integrity.

Impact

For European organizations, the impact of CVE-2023-4320 is substantial, particularly for enterprises and government agencies that depend on Red Hat Satellite for managing large-scale RHEL deployments. Indefinitely valid personal access tokens can allow attackers to maintain persistent, unauthorized access to critical infrastructure management systems, potentially leading to unauthorized configuration changes, data exposure, or lateral movement within networks. This undermines system integrity and confidentiality, increasing the risk of data breaches or operational disruptions. The vulnerability could also affect compliance with European data protection regulations such as GDPR if unauthorized access leads to personal data exposure. Organizations in sectors like finance, telecommunications, public administration, and critical infrastructure, which heavily utilize Red Hat Satellite, face heightened risks. The absence of known exploits currently provides a window for proactive mitigation, but the potential for future exploitation necessitates urgent attention.

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Exploitation evidence

What to do

Description

AI analysisMachine-generated, updated 20 Nov 2025, 18:40 UTC

Technical details

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