cbcvebase.
CVE-2019-0736
published 2019-08-14

CVE-2019-0736: A memory corruption vulnerability exists in the Windows DHCP client when an attacker sends specially crafted DHCP responses to a client. An attacker who…

PriorityP357critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
3.97%
89.3th percentile
A memory corruption vulnerability exists in the Windows DHCP client when an attacker sends specially crafted DHCP responses to a client. An attacker who successfully exploited the vulnerability could run arbitrary code on the client machine. To exploit the vulnerability, an attacker could send specially crafted DHCP responses to a client. The security update addresses the vulnerability by correcting how Windows DHCP clients handle certain DHCP responses.

Affected

37 ranges· showing 25
VendorProductVersion rangeFixed in
microsoftwindows_10
microsoftwindows_10
microsoftwindows_10
microsoftwindows_10
microsoftwindows_10_version_1507>= 10.0.0 < publicationpublication
microsoftwindows_10_version_1607>= 10.0.0 < publicationpublication
microsoftwindows_10_version_1703>= 10.0.0 < publicationpublication
microsoftwindows_10_version_1709>= 10.0.0 < publicationpublication
microsoftwindows_10_version_1709_for_32-bit_systems>= 10.0.0 < publicationpublication
microsoftwindows_10_version_1803>= 10.0.0 < publicationpublication
microsoftwindows_7>= 6.1.0 < publicationpublication
microsoftwindows_7_service_pack_1>= 6.1.0 < publicationpublication
microsoftwindows_8.1>= 6.3.0 < publicationpublication
microsoftwindows_server_2008
microsoftwindows_server_2008_r2_service_pack_1>= 6.0.0 < publicationpublication
microsoftwindows_server_2008_r2_service_pack_1>= 6.1.0 < publicationpublication
microsoftwindows_server_2008_r2_systems_service_pack_1>= 6.1.0 < publicationpublication
microsoftwindows_server_2008_service_pack_2>= 6.0.0 < publicationpublication
microsoftwindows_server_2012
microsoftwindows_server_2012>= 6.2.0 < publicationpublication
microsoftwindows_server_2012_r2>= 6.3.0 < publicationpublication
microsoftwindows_server_2016
microsoftwindows_server_2016>= 10.0.0 < publicationpublication
msrcwindows_10
msrcwindows_10_version_1607

Detection & IOCsextracted from sources · hover to see the quote

  • Exploit vector is a rogue/malicious DHCP server sending specially crafted DHCP responses to Windows DHCP clients — monitor for anomalous DHCP response traffic on UDP port 68 (client-side) originating from unexpected sources
  • Target component is the Windows DHCP Client service; focus endpoint detection on memory corruption events or crashes within the DHCP client process (svchost.exe hosting Dhcp service)
  • Successful exploitation results in arbitrary code execution on the client machine — correlate DHCP client anomalies with unexpected process spawning from svchost.exe (Dhcp service group)
  • ·No public exploit code or proof-of-concept available at time of disclosure; Microsoft assessed exploitation as 'Less Likely' for both current and older software releases

CVSS provenance

nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv2.07.5HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
vendor_msrc9.8CRITICAL
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