CVE-2019-5544

💻 Affected Systems

📦 What is this software?

⚠️ Risk & Real-World Impact

🎯 Exploit Status

Proof-of-concept exploit code is publicly available. The vulnerability requires no authentication and has low attack complexity.

🔍 How to Verify

Check ESXi version with 'esxcli system version get' and compare against patched versions

esxcli system version get

Verify patch installation with 'esxcli software vib list | grep open-vm-tools' and check version

📡 Detection & Monitoring

source="ESXi" AND (port=427 OR protocol="SLP") AND (size>normal OR malformed_packet)

🔗 References

• http://www.openwall.com/lists/oss-security/2019/12/10/2 Mailing List,Third Party Advisory
• http://www.openwall.com/lists/oss-security/2019/12/11/2 Mailing List,Third Party Advisory
• http://www.vmware.com/security/advisories/VMSA-2019-0022.html Patch,Vendor Advisory
• https://access.redhat.com/errata/RHSA-2019:4240 Third Party Advisory
• https://access.redhat.com/errata/RHSA-2020:0199 Third Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DA3LYAJ2NRKMOZLZOQNDJ5TNQRFMWGHF/ Release Notes
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZPXXJZLPLAQULBCJVI5NNWZ3PGWXGXWG/ Release Notes
• https://security.gentoo.org/glsa/202005-12 Third Party Advisory
• http://www.openwall.com/lists/oss-security/2019/12/10/2 Mailing List,Third Party Advisory
• http://www.openwall.com/lists/oss-security/2019/12/11/2 Mailing List,Third Party Advisory
• http://www.vmware.com/security/advisories/VMSA-2019-0022.html Patch,Vendor Advisory
• https://access.redhat.com/errata/RHSA-2019:4240 Third Party Advisory
• https://access.redhat.com/errata/RHSA-2020:0199 Third Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DA3LYAJ2NRKMOZLZOQNDJ5TNQRFMWGHF/ Release Notes
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZPXXJZLPLAQULBCJVI5NNWZ3PGWXGXWG/ Release Notes
• https://security.gentoo.org/glsa/202005-12 Third Party Advisory
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-5544 US Government Resource