Skip to content
Noroxi
CVE-2023-3899· NVD / CVE Program· CNA redhat

Subscription-manager: inadequate authorization of com.redhat.rhsm1 d-bus interface allows local users to modify configuration

Noroxi assessment

Priority: Monitor (action score 31/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.24% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: dnf-plugin-subscription-manager (AlmaLinux:8) 1.28.36-3.el8_8.alma.1; python3-cloud-what (AlmaLinux:8) 1.28.36-3.el8_8.alma.1; python3-subscription-manager-rhsm (AlmaLinux:8) 1.28.36-3.el8_8.alma.1.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to dnf-plugin-subscription-manager (AlmaLinux:8) 1.28.36-3.el8_8.alma.1; python3-cloud-what (AlmaLinux:8) 1.28.36-3.el8_8.alma.1; python3-subscription-manager-rhsm (AlmaLinux:8) 1.28.36-3.el8_8.alma.1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

HighCVSS 7.8 · v3.1—No exploit Fix available
Published
Aug 23, 2023
Updated
Jun 17, 2026
EPSS
0.2% · 14th percentile

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
7.8
CNA · redhat
7.8
agree

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2023-3899

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

One daily email digest (06:00 UTC); connect a webhook for KEV listings and weaponized exploits instantly.

Your free account also gets you

Running WordPress? Scan your site free with WP Lens

  • Stack alerts: add the products and versions you run, get the new CVEs that affect them
  • Uptime monitoring: 1 site, instant email when it goes down
  • Add your domain: subdomains and takeover risk scanned every week (1 domain)
  • 10 scans an hour on the security tools (3 a day without an account), an API key and MCP
  • All your scans in one panel: findings, what changed in the last scan, a report per domain or per client (PDF, share link)
All free tools

Sign up with email · Have an account? Sign in

Free account, no card. Unfollow any time.

Don't want an account? Get "Exploited this week" by email every MondayDon't want an account? RSS feed for redhat records

Running WordPress? Scan your site free with WP Lens

Is your version affected? Check it

Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

We use this product, ask for help

Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
redhatsubscription-manager
redhatenterprise linux
redhatenterprise linux desktop
redhatenterprise linux eus
redhatenterprise linux for arm 64
redhatenterprise linux for arm 64 eus
redhatenterprise linux for ibm z systems
redhatenterprise linux for ibm z systems eus
redhatenterprise linux for power big endian
redhatenterprise linux for power little endian
redhatenterprise linux for power little endian eus
redhatenterprise linux for scientific computing

and 8 more

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • fedoraproject fedora37
  • fedoraproject fedora38
  • redhat enterprise linux8.0
  • redhat enterprise linux9.0
  • redhat enterprise linux desktop7.0
  • redhat enterprise linux eus8.6
  • redhat enterprise linux eus8.8
  • redhat enterprise linux eus9.0
  • redhat enterprise linux eus9.2
  • redhat enterprise linux for arm 648.0
  • redhat enterprise linux for arm 649.0
  • redhat enterprise linux for arm 649.2
  • redhat enterprise linux for arm 64 eus8.6
  • redhat enterprise linux for arm 64 eus8.8
  • redhat enterprise linux for arm 64 eus9.0
  • redhat enterprise linux for arm 64 eus9.2
  • redhat enterprise linux for ibm z systems7.0
  • redhat enterprise linux for ibm z systems8.0
  • redhat enterprise linux for ibm z systems9.0
  • redhat enterprise linux for ibm z systems9.2

Versions reported by the vendor

Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.

  • Red Hat Red Hat Enterprise Linux 6

    • all versionsunknown

  • Red Hat Red Hat Enterprise Linux 7

    • 0:1.24.52-2.el7_9 and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 8

    • 0:1.28.36-3.el8_8 and laternot affected · rpm
    • 0:1.28.36-3.el8_8 and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions

    • 0:1.25.17.1-2.el8_1 and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support

    • 0:1.26.22-2.el8_2 and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 8.2 Telecommunications Update Service

    • 0:1.26.22-2.el8_2 and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions

    • 0:1.26.22-2.el8_2 and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support

    • 0:1.28.13-7.el8_4 and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service

    • 0:1.28.13-7.el8_4 and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions

    • 0:1.28.13-7.el8_4 and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support

    • 0:1.28.29.1-2.el8_6 and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 9

    • 0:1.29.33.1-2.el9_2 and laternot affected · rpm

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
AlmaLinux:8dnf-plugin-subscription-managerbefore 1.28.36-3.el8_8.alma.11.28.36-3.el8_8.alma.1
AlmaLinux:8python3-cloud-whatbefore 1.28.36-3.el8_8.alma.11.28.36-3.el8_8.alma.1
AlmaLinux:8python3-subscription-manager-rhsmbefore 1.28.36-3.el8_8.alma.11.28.36-3.el8_8.alma.1
AlmaLinux:8python3-syspurposebefore 1.28.36-3.el8_8.alma.11.28.36-3.el8_8.alma.1
AlmaLinux:8subscription-managerbefore 1.28.36-3.el8_8.alma.11.28.36-3.el8_8.alma.1
AlmaLinux:8subscription-manager-migrationbefore 1.28.36-3.el8_8.alma.11.28.36-3.el8_8.alma.1
AlmaLinux:8subscription-manager-plugin-ostreebefore 1.28.36-3.el8_8.alma.11.28.36-3.el8_8.alma.1
AlmaLinux:8subscription-manager-rhsm-certificatesbefore 1.28.36-3.el8_8.alma.11.28.36-3.el8_8.alma.1
AlmaLinux:9libdnf-plugin-subscription-managerbefore 1.29.33.1-2.el9_2.alma.11.29.33.1-2.el9_2.alma.1
AlmaLinux:9python3-cloud-whatbefore 1.29.33.1-2.el9_2.alma.11.29.33.1-2.el9_2.alma.1
AlmaLinux:9python3-subscription-manager-rhsmbefore 1.29.33.1-2.el9_2.alma.11.29.33.1-2.el9_2.alma.1
AlmaLinux:9subscription-managerbefore 1.29.33.1-2.el9_2.alma.11.29.33.1-2.el9_2.alma.1
AlmaLinux:9subscription-manager-plugin-ostreebefore 1.29.33.1-2.el9_2.alma.11.29.33.1-2.el9_2.alma.1
Red Hat:enterprise_linux:7::clientpython-syspurposebefore 0:1.24.52-2.el7_90:1.24.52-2.el7_9
Red Hat:enterprise_linux:7::clientrhsm-gtkbefore 0:1.24.52-2.el7_90:1.24.52-2.el7_9
Red Hat:enterprise_linux:7::clientsubscription-managerbefore 0:1.24.52-2.el7_90:1.24.52-2.el7_9
Red Hat:enterprise_linux:7::clientsubscription-manager-cockpitbefore 0:1.24.52-2.el7_90:1.24.52-2.el7_9
Red Hat:enterprise_linux:7::clientsubscription-manager-debuginfobefore 0:1.24.52-2.el7_90:1.24.52-2.el7_9
Red Hat:enterprise_linux:7::clientsubscription-manager-guibefore 0:1.24.52-2.el7_90:1.24.52-2.el7_9
Red Hat:enterprise_linux:7::clientsubscription-manager-initial-setup-addonbefore 0:1.24.52-2.el7_90:1.24.52-2.el7_9
Red Hat:enterprise_linux:7::clientsubscription-manager-migrationbefore 0:1.24.52-2.el7_90:1.24.52-2.el7_9
Red Hat:enterprise_linux:7::clientsubscription-manager-plugin-containerbefore 0:1.24.52-2.el7_90:1.24.52-2.el7_9
Red Hat:enterprise_linux:7::clientsubscription-manager-plugin-ostreebefore 0:1.24.52-2.el7_90:1.24.52-2.el7_9
Red Hat:enterprise_linux:7::clientsubscription-manager-rhsmbefore 0:1.24.52-2.el7_90:1.24.52-2.el7_9

+96

Same product

redhat: all records

Other highest-scoring records for the same primary product.

  • CVE-2017-2663It was found that subscription-manager's DBus interface before 1.19.4 let unprivileged user access the com.redhat.RHSM1.Facts.GetFacts and c
    31Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
almalinux:dnf-plugin-subscription-manager1.28.36-3.el8_8.alma.1 · AlmaLinux:8Package registry (OSV)
almalinux:libdnf-plugin-subscription-manager1.29.33.1-2.el9_2.alma.1 · AlmaLinux:9Package registry (OSV)
almalinux:python3-cloud-what1.28.36-3.el8_8.alma.1 · AlmaLinux:8Package registry (OSV)
almalinux:python3-subscription-manager-rhsm1.28.36-3.el8_8.alma.1 · AlmaLinux:8Package registry (OSV)
almalinux:python3-syspurpose1.28.36-3.el8_8.alma.1 · AlmaLinux:8Package registry (OSV)
almalinux:subscription-manager1.28.36-3.el8_8.alma.1 · AlmaLinux:8Package registry (OSV)
almalinux:subscription-manager-migration1.28.36-3.el8_8.alma.1 · AlmaLinux:8Package registry (OSV)
almalinux:subscription-manager-plugin-ostree1.28.36-3.el8_8.alma.1 · AlmaLinux:8Package registry (OSV)
almalinux:subscription-manager-rhsm-certificates1.28.36-3.el8_8.alma.1 · AlmaLinux:8Package registry (OSV)
red hat:python-syspurpose0:1.24.52-2.el7_9 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:rhsm-gtk0:1.24.52-2.el7_9 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:subscription-manager0:1.24.52-2.el7_9 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:subscription-manager-cockpit0:1.24.52-2.el7_9 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:subscription-manager-debuginfo0:1.24.52-2.el7_9 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:subscription-manager-gui0:1.24.52-2.el7_9 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:subscription-manager-initial-setup-addon0:1.24.52-2.el7_9 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:subscription-manager-migration0:1.24.52-2.el7_9 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:subscription-manager-plugin-container0:1.24.52-2.el7_9 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:subscription-manager-plugin-ostree0:1.24.52-2.el7_9 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:subscription-manager-rhsm0:1.24.52-2.el7_9 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:subscription-manager-rhsm-certificates0:1.24.52-2.el7_9 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
rocky linux:subscription-manager0:1.28.36-3.el8_8.rocky.0.1 · Rocky Linux:8Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-285 · Improper Authorization

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (11 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records