CVE-2019-19741 Detail
Modified
This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided. DescriptionElectronic Arts Origin 10.5.55.33574 is vulnerable to local privilege escalation due to arbitrary directory DACL manipulation, a different issue than CVE-2019-19247 and CVE-2019-19248. When Origin.exe connects to the named pipe OriginClientService, the privileged service verifies the client's executable file instead of its in-memory process (which can be significantly different from the executable file due to, for example, DLL injection). Data transmitted over the pipe is encrypted using a static key. Instead of hooking the pipe communication directly via WriteFileEx(), this can be bypassed by hooking the EVP_EncryptUpdate() function of libeay32.dll. The pipe takes the command CreateDirectory to create a directory and adjust the directory DACL. Calls to this function can be intercepted, the directory and the DACL can be replaced, and the manipulated DACL is written. Arbitrary DACL write is further achieved by creating a hardlink in a user-controlled directory that points to (for example) a service binary. The DACL is then written to this service binary, which results in escalation of privileges. Metrics
NVD enrichment efforts reference publicly available information to associate
vector strings. CVSS information contributed by other sources is also
displayed.
CVSS 3.x Severity and Vector Strings:
References to Advisories, Solutions, and ToolsBy selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to nvd@nist.gov. Weakness Enumeration
Known Affected Software Configurations Switch to CPE 2.2 Configuration 1 ( hide )
Denotes Vulnerable Software Quick InfoCVE Dictionary Entry:CVE-2019-19741 NVD Published Date: 02/20/2020 NVD Last Modified: 11/20/2024 Source: MITRE |