A vulnerability in the London Trust Media Private Internet Access (PIA) VPN Client v82 for macOS could allow an authenticated, local attacker to run arbitrary code with elevated privileges. The macOS binary openvpn_launcher.64 is setuid root. This binary creates /tmp/pia_upscript.sh when executed. Because the file creation mask (umask) is not reset, the umask value is inherited from the calling process. This value can be manipulated to cause the privileged binary to create files with world writable permissions. A local unprivileged user can modify /tmp/pia_upscript.sh during the connect process to execute arbitrary code as the root user.
References
Link | Resource |
---|---|
https://github.com/mirchr/security-research/blob/master/vulnerabilities/PIA/CVE-2019-12577.txt | Exploit Third Party Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: mitre
Published: 2019-07-11T19:27:59
Updated: 2019-07-11T19:27:58
Reserved: 2019-06-02T00:00:00
Link: CVE-2019-12577
JSON object: View
NVD Information
Status : Analyzed
Published: 2019-07-11T20:15:13.117
Modified: 2021-09-08T17:22:01.867
Link: CVE-2019-12577
JSON object: View
Redhat Information
No data.
CWE