CVE-2024-28847

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CVE

OpenMetadata is a unified platform for discovery, observability, and governance powered by a central metadata repository

OpenMetadata is a unified platform for discovery, observability, and governance powered by a central metadata repository, in-depth lineage, and seamless team collaboration. Similarly to the GHSL-2023-250 issue, AlertUtil::validateExpression is also called from EventSubscriptionRepository.prepare(), which can lead to Remote Code Execution. prepare() is called from EntityRepository.prepareInternal() which, in turn, gets called from EntityResource.createOrUpdate(). Note that, even though there is an authorization check (authorizer.authorize()), it gets called after prepareInternal() gets called and, therefore, after the SpEL expression has been evaluated.

In order to reach this method, an attacker can send a PUT request to /api/v1/events/subscriptions which gets handled by EventSubscriptionResource.createOrUpdateEventSubscription(). This vulnerability was discovered with the help of CodeQL's Expression language injection (Spring) query. This issue may lead to Remote Code Execution and has been addressed in version 1.2.4.

Users are advised to upgrade. There are no known workarounds for this vulnerability. This issue is also tracked as GHSL-2023-251.

HIGH · CVSS 8.8 EPSS 0.12686

Act now

EPSS ≥ 0.10 - elevated exploitation probability
EPSS percentile: top 6% of all CVEs by exploitation likelihood
Public exploit or PoC is available
CVSS base score ≥ 7.0

Sigma rules0 YARA rules0

Look this up elsewhere - one-click external pivots

NVD CVE.org CISA Vulners Exploit-DB GitHub PoC VulnCheck KEV GreyNoise

▸ How to read a CVE - triage first, then detect and patch

This page is every public fact about CVE-2024-28847, cross-linked. Its job is to answer one question fast - does this need my attention now? - and then hand you the two things you do about it. Here is how an analyst reads it.

Triage: should I act now? Four signals, and they are not interchangeable:

CVSSseverity - how bad it is IF exploited, 0-10. A high CVSS alone is not urgency; a flaw can be a perfect 10 and never actually be attacked. EPSSprobability - a model’s estimate of the chance it is exploited in the next 30 days, 0-1. This is the “will it actually happen” signal. CISA KEVconfirmed - it is being exploited in the wild right now. The strongest signal on the page; KEV beats any score. Weaponisedavailability - public exploits / PoCs, and especially Metasploit modules rated Excellent / Great. Reliable, packaged exploit code means low-skill attackers can use it today.

How they combine: KEV, or a dependable Metasploit module, means patch now regardless of CVSS. High CVSS + low EPSS + no exploit is real but not an emergency - schedule it. Low CVSS but KEV-listed still gets patched now. The verdict above already weighed these for you; this is how it got there.

Then what - two workflows:

Detectwhen you cannot patch today, follow this CVE to the ATT&CK techniques it enables, then Build a SIEM detection (the green button) - author a rule, test it in Atomic, deploy it. That buys visibility while the patch waits. PatchAffected products / packages tell you if you are exposed; Fixed versions by distribution and Vendor advisories give the exact version that closes it.

Reading order for the panels below: verdict + badges, then Public exploits / Metasploit (is it weaponised), then ATT&CK techniques + Sigma / IDS rules (can I detect it), then Affected products / packages + Fixed versions (am I exposed, what patches it), then Threat actors / IOCs (who uses it), then Scoring & timeline / references (the evidence).

View attack path from CVE-2024-28847

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ATT&CK techniques

Techniques this CVE enables - linked via CWECAPECATT&CK. High◆ = named directly in ATT&CK or Nuclei templates.

T1027.006 · HTML Smuggling T1027.009 · Embedded Payloads T1564.009 · Resource Forking

▤ Build a SIEM detection for these techniques

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CAPEC attack patterns

Attack patterns this CVE enables - the bridge from weakness to ATT&CK technique.

CAPEC-CAPEC-242 · Code Injection CAPEC-CAPEC-35 · Leverage Executable Code in Non-Executable Files CAPEC-CAPEC-77 · Manipulating User-Controlled Variables

⬡

Weakness Classification

CWE-94Improper Control of Generation of Code ('Code Injection')

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Affected Products & Versions

open-metadata openmetadata< 1.2.4

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Affected Packages

Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.

Maven org.open-metadata:openmetadata-service HIGH fixed in 1.2.4

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Public Exploits & PoCs

These PoC and exploit links come from public sources and are not verified to be safe or functional. Review the code before running anything, and treat unverified entries as untrusted.
pocPublic PoC (nvd-reference)
pocopen-metadata/OpenMetadata (trickest)
pocNaInSec/CVE-LIST (trickest)
pocfkie-cad/nvd-json-data-feeds (trickest)
pocgithub.com · GHSA-8p5r-6mvv-2435github.com

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Scoring & Timeline

8.8

HIGH · CVSS v3.1 · [email protected]

View on NVD

Attack Vector

Network Adjacent Local Physical

Attack Complexity

Low High

Privileges Required

None Low High

User Interaction

None Required

Scope

Unchanged Changed

Confidentiality

None Low High

Integrity

None Low High

Availability

None Low High

Published to NVD15 Mar 2024 · 08:15 PM

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

SSVC triage · cisa-vulnrichment

Exploitation

poc

Automatable

Technical impact

total

SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.

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References & Sources

Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.

https://codeql.github.com/codeql-query-help/java/java-spel-expression-injectionNot Applicable

https://github.com/open-metadata/OpenMetadata/blob/b6b337e09a05101506a5faba4b45d370cc3c9fc8/openmetadata-service/src/main/java/org/openmetadata/service/jdbi3/EntityRepository.java#L693Product

https://github.com/open-metadata/OpenMetadata/blob/b6b337e09a05101506a5faba4b45d370cc3c9fc8/openmetadata-service/src/main/java/org/openmetadata/service/jdbi3/EventSubscriptionRepository.java#L69-L83Product

https://github.com/open-metadata/OpenMetadata/blob/b6b337e09a05101506a5faba4b45d370cc3c9fc8/openmetadata-service/src/main/java/org/openmetadata/service/resources/EntityResource.java#L219Product

https://github.com/open-metadata/OpenMetadata/blob/b6b337e09a05101506a5faba4b45d370cc3c9fc8/openmetadata-service/src/main/java/org/openmetadata/service/resources/events/subscription/EventSubscriptionResource.java#L289Product