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CVE-2017-12149

Red Hat JBoss Application Server Remote Code Execution

9.8 CRITICALActively exploited (CISA KEV)Used in ransomwareEPSS 90.7%
  1. Published4 Oct 2017
  2. Added to CISA KEV10 Dec 2021
  3. Remediation due10 Jun 2022
Actively exploited (CISA KEV)

The JBoss Application Server, shipped with Red Hat Enterprise Application Platform 5.2, allows an attacker to execute arbitrary code via crafted serialized data.

Added to KEV: 10 Dec 2021Federal remediation due: 10 Jun 2022Used in ransomware

Description

In Jboss Application Server as shipped with Red Hat Enterprise Application Platform 5.2, it was found that the doFilter method in the ReadOnlyAccessFilter of the HTTP Invoker does not restrict classes for which it performs deserialization and thus allowing an attacker to execute arbitrary code via crafted serialized data.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Redhat Jboss Enterprise Application Platform5.0.0 · 5.0.1 · 5.1.0 · 5.1.1

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

Frequently asked

Is CVE-2017-12149 being actively exploited?

Yes. CVE-2017-12149 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 10 Dec 2021. It has been used in ransomware campaigns.

How severe is CVE-2017-12149?

CVE-2017-12149 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 90.7% probability of exploitation.

Which products are affected by CVE-2017-12149?

Affected products include Redhat Jboss Enterprise Application Platform.

How do I fix CVE-2017-12149?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2017-12149 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.