CVE-2016-15045: Privilege Escalation

Description

A local privilege escalation vulnerability exists in lastore-daemon, the system package manager daemon used in Deepin Linux (developed by Wuhan Deepin Technology Co., Ltd.). In versions 0.9.53-1 (Deepin 15.5) and 0.9.66-1 (Deepin 15.7), the D-Bus configuration permits any user in the sudo group to invoke the InstallPackage method without password authentication. By default, the first user created on Deepin is in the sudo group. An attacker with shell access can craft a .deb package containing a malicious post-install script and use dbus-send to install it via lastore-daemon, resulting in arbitrary code execution as root.

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Weakness Type (CWE)

CWE-269 CWE-269

CWE-306 Missing Authentication

References

Other References

https://github.com/linuxdeepin/lastore-daemon https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/linux/local/lastore_daemon_dbus_priv_esc.rb https://www.deepin.org/en/mirrors/releases/ https://www.exploit-db.com/exploits/39433 https://www.exploit-db.com/exploits/44523 https://www.vulncheck.com/advisories/deepin-lastore-daemon-priv-esc https://www.exploit-db.com/exploits/39433

Frequently Asked Questions

What is CVE-2016-15045? +

A local privilege escalation vulnerability exists in lastore-daemon, the system package manager daemon used in Deepin Linux (developed by Wuhan Deepin Technology Co., Ltd.). In versions 0.9.53-1 (Deepin 15.5) and 0.9.66-1 (Deepin 15.7), the D-Bus configuration permits any user in the sudo group to invoke the InstallPackage method without password authentication. By default, the first user created on Deepin is in the sudo group. An attacker with shell access can craft a .deb package containing a malicious post-install script and use dbus-send to install it via lastore-daemon, resulting in arbitrary code execution as root.

How do I check if I'm vulnerable to CVE-2016-15045? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2016-15045