CVE-2019-17558highunder attackCWE-74

CVE-2019-17558

100Vexday Risk Score

Patch now. It under exploitation confirmed by CISA and has a working public exploit.

ssvc Actcvss 7.5epss 99%

from disclosure to weapon0 days

Published on NVDDec 30

1st PoCNov 1

metasploitOct 29

CISA KEV+674d

exploitation probability

99%top 1% of all CVEs

observed exploitation

yesCISA + VulnCheck

11 public exploit(s)

What the vendors declare (VEX)

Official vendor statements in CSAF/VEX format: whether their product is affected, already fixed, or ruled out — and why. These are the vendor's assertions, not Vexday's judgment.

Red HatVEX document ↗

Not affected

4 products — because the vulnerable code is not present in the product

Red Hat JBoss Data Virtualization 6 · Red Hat JBoss Enterprise Application Platform 6 · Red Hat JBoss Fuse 6 · Red Hat JBoss Fuse Service Works 6

Action required by CISAfederal deadline: 2022-05-03

Apply updates per vendor instructions.

Versions

Affected

maven/org.apache.solr:solr-core >= 5.0.0, <= 5.5.5; maven/org.apache.solr:solr-core >= 6.0.0, <= 6.6.6; maven/org.apache.solr:solr-core >= 7.0.0, <= 7.7.2; maven/org.apache.solr:solr-core >= 8.0.0, <= 8.3.1

Fixed in

maven/org.apache.solr:solr-core 8.4.0; maven/org.apache.solr:solr-core 8.4.0; maven/org.apache.solr:solr-core 8.4.0; maven/org.apache.solr:solr-core 8.4.0

Researched and written with AI from the vendor advisory and public analysis, with the sources above. Always confirm the fixed version in the official advisory before acting.

Apache Solr 5.0.0 to Apache Solr 8.3.1 are vulnerable to a Remote Code Execution through the VelocityResponseWriter. A Velocity template can be provided through Velocity templates in a configset `velocity/` directory or as a parameter. A user defined configset could contain renderable, potentially malicious, templates. Parameter provided templates are disabled by default, but can be enabled by setting `params.resource.loader.enabled` by defining a response writer with that setting set to `true`. Defining a response writer requires configuration API access. Solr 8.4 removed the params resource loader entirely, and only enables the configset-provided template rendering when the configset is `trusted` (has been uploaded by an authenticated user).

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

Affected products

n/a · Apache Solr

public PoCs found — 11✓ VexDay Proof

exploitdb✓ VexDay Proofwww.exploit-db.com/exploits/48338 exploitdbwww.exploit-db.com/exploits/47572unverified githubgithub.com/zhzyker/exphub★ 4294 githubgithub.com/Ma1Dong/Solr_CVE-2019-17558★ 2 githubgithub.com/rogerzeferino/cve-2019-17558-apache-solr-rce★ 1 githubgithub.com/thelostworldFree/CVE-2019-17558_Solr_Vul_Tool★ 1 githubgithub.com/xkyrage/Exploit_CVE-2019-17558-RCE★ 0 githubgithub.com/rogerzeferino/Apache-Solr-RCE-CVE-2019-17558★ 0 cve_referencepacketstormsecurity.com/files/157078/Apache-Solr-8.3.0-Velocity-Template-Remote-Code-Execution.htmlunverified vulncheckvulncheck.com/xdb/6918ed306441unverified vulncheckvulncheck.com/xdb/7bb322405f10unverified

⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

References