CVE-2019-19741
What it is
Electronic 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.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.7% chance of exploitation in the next 30 days (EPSS).
- Fix
- No patch or advisory is linked yet. Look at mitigations or restrict exposure.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.7% in the next 30 days (EPSS).
- Severity: 7.8 HIGH (CVSS).
- Fix: none linked yet, which raises it.
Details
- Published
- Last modified
- Exploit probability
- 0.7% · EPSS, next 30 days
- Record status
- Modified
Affected
- Ea Origin < 10.5.56.33908
Attack profile CVSS 3.1 · 7.8
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2019-19741.md and follow it. Check whether this project is affected by CVE-2019-19741. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
