CVE Number – CVE-2016-2148
A vulnerability in the DHCP client component of BusyBox could allow an unauthenticated, remote attacker to execute arbitrary code or cause a denial of service (DoS) condition on a targeted system.
The vulnerability exists because the affected software improperly parses OPTION_6RD. An attacker could exploit this vulnerability by sending a packet that submits malicious input to the targeted system. A successful exploit could trigger a heap-based buffer overflow condition that the attacker could use to execute arbitrary code or cause a DoS condition.The vendor has confirmed the vulnerability and released software updates.
- To exploit this vulnerability, an attacker must send a packet that submits malicious input to the targeted system, making exploitation more difficult in environments that restrict network access from untrusted sources.
- Administrators are advised to apply the appropriate updates.
Administrators are advised to allow only trusted users to have network access.
Administrators are advised to run both firewall and antivirus applications to minimize the potential of inbound and outbound threats.
Administrators may consider using IP-based access control lists (ACLs) to allow only trusted systems to access the affected systems.
Administrators can help protect affected systems from external attacks by using a solid firewall strategy.
Administrators are advised to monitor affected systems.
- The vendor has released a git commit at the following link: commit 352f79acbd759c14399e39baef21fc4ffe180ac2
- The vendor has released software updates at the following link: BusyBox 1.25.0
Duncan is a technology professional with over 20 years experience of working in various IT roles. He has a interest in cyber security, and has a wide range of other skills in radio, electronics and telecommunications.