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CVE-2023-3899

HIGHCVSS 7.8/10EPSS 0.25%

Last modified

CVE-2023-3899 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. A vulnerability was found in subscription-manager that allows local privilege escalation due to inadequate authorization. The D-Bus interface com.redhat.RHSM1 exposes a significant number of methods to all users that could change the state of the registration. EPSS estimates a 0.25% chance of exploitation in the next 30 days.

Description

A vulnerability was found in subscription-manager that allows local privilege escalation due to inadequate authorization. The D-Bus interface com.redhat.RHSM1 exposes a significant number of methods to all users that could change the state of the registration. By using the com.redhat.RHSM1.Config.SetAll() method, a low-privileged local user could tamper with the state of the registration, by unregistering the system or by changing the current entitlements. This flaw allows an attacker to set arbitrary configuration directives for /etc/rhsm/rhsm.conf, which can be abused to cause a local privilege escalation to an unconfined root.

Metrics

CVSS 3.1
7.8/10

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

EPSS Probability
0.25%

16.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
RedhatSubscription-Manager< 1.28.39
RedhatSubscription-Manager>= 1.29.0, < 1.29.37
FedoraprojectFedora37
FedoraprojectFedora38
RedhatEnterprise Linux8.0
RedhatEnterprise Linux9.0
RedhatEnterprise Linux Desktop7.0
RedhatEnterprise Linux Eus8.6
RedhatEnterprise Linux Eus8.8
RedhatEnterprise Linux Eus9.0
RedhatEnterprise Linux Eus9.2
RedhatEnterprise Linux For Arm 648.0
RedhatEnterprise Linux For Arm 649.0
RedhatEnterprise Linux For Arm 649.2
RedhatEnterprise Linux For Arm 64 Eus8.6
RedhatEnterprise Linux For Arm 64 Eus8.8
RedhatEnterprise Linux For Arm 64 Eus9.0
RedhatEnterprise Linux For Arm 64 Eus9.2
RedhatEnterprise Linux For Ibm Z Systems7.0
RedhatEnterprise Linux For Ibm Z Systems8.0
RedhatEnterprise Linux For Ibm Z Systems9.0
RedhatEnterprise Linux For Ibm Z Systems9.2
RedhatEnterprise Linux For Ibm Z Systems Eus8.6
RedhatEnterprise Linux For Ibm Z Systems Eus8.8
RedhatEnterprise Linux For Ibm Z Systems Eus9.0
RedhatEnterprise Linux For Ibm Z Systems Eus9.2
RedhatEnterprise Linux For Power Big Endian7.0
RedhatEnterprise Linux For Power Little Endian7.0
RedhatEnterprise Linux For Power Little Endian8.0
RedhatEnterprise Linux For Power Little Endian9.0
RedhatEnterprise Linux For Power Little Endian Eus8.8
RedhatEnterprise Linux For Power Little Endian Eus9.0
RedhatEnterprise Linux For Power Little Endian Eus9.2
RedhatEnterprise Linux For Scientific Computing7.0
RedhatEnterprise Linux Server7.0
RedhatEnterprise Linux Server Aus8.2
RedhatEnterprise Linux Server Aus8.4
RedhatEnterprise Linux Server Aus8.6
RedhatEnterprise Linux Server Aus9.2
RedhatEnterprise Linux Server For Power Little Endian Update Services For Sap Solutions8.1
RedhatEnterprise Linux Server For Power Little Endian Update Services For Sap Solutions8.2
RedhatEnterprise Linux Server For Power Little Endian Update Services For Sap Solutions8.4
RedhatEnterprise Linux Server For Power Little Endian Update Services For Sap Solutions8.6
RedhatEnterprise Linux Server For Power Little Endian Update Services For Sap Solutions8.8
RedhatEnterprise Linux Server For Power Little Endian Update Services For Sap Solutions9.0
RedhatEnterprise Linux Server For Power Little Endian Update Services For Sap Solutions9.2
RedhatEnterprise Linux Server Tus8.2
RedhatEnterprise Linux Server Tus8.4
RedhatEnterprise Linux Server Tus8.6
RedhatEnterprise Linux Server Tus8.8

Showing 50 of 58 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2023-3899?
A vulnerability was found in subscription-manager that allows local privilege escalation due to inadequate authorization. The D-Bus interface com.redhat.RHSM1 exposes a significant number of methods to all users that could change the state of the registration. By using the com.redhat.RHSM1.Config.SetAll() method, a low-privileged local user could tamper with the state of the registration, by unregistering the system or by changing the current entitlements. This flaw allows an attacker to set arbitrary configuration directives for /etc/rhsm/rhsm.conf, which can be abused to cause a local privilege escalation to an unconfined root.
How severe is CVE-2023-3899?
CVE-2023-3899 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.25% probability of exploitation in the next 30 days.
How do I fix CVE-2023-3899?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-3899?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST