PT-2019-2733 · Microsoft · Windows

James Forshaw · Published 2019-07-09 · Updated 2020-08-24 · CVE-2019-1089

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Windows (affected versions not specified)

Description The issue is related to an elevation of privilege vulnerability in the rpcss.dll library when the RPC service Activation Kernel improperly handles an RPC request. This could allow a low-level authenticated attacker to run a specially crafted application and potentially elevate their privileges. The security update addresses this by correcting how rpcss.dll handles these requests.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Weakness Enumeration

CWE-264

Related Identifiers

BDU:2019-02669

CVE-2019-1089

Affected Products

Windows

References · 8

• 🔥 https://exploit-db.com/exploits/47135 · Exploit
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1089 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-1089 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2019-1089 · Vendor Advisory
• https://bdu.fstec.ru/vul/2019-02669 · Security Note
• https://osv.dev/vulnerability/CVE-2019-1089 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-1089 · Security Note
• http://packetstormsecurity.com/files/153683/Microsoft-Windows-RPCSS-Activation-Kernel-Security-Callback-Privilege-Escalation.html · Note