Splunk Splunkd HTTP Request Processing Denial of Service Vulnerability [CVE-2018-7429]

CVE Number – CVE-2018-7429

A vulnerability in the Splunkd daemon of Splunk could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on a targeted system.

The vulnerability is due to improper processing of HTTP requests by the Splunkd daemon of the affected software. An attacker could exploit this vulnerability by sending an HTTP request that submits malicious input to the targeted system. A successful exploit could result in a DoS condition.Splunk has confirmed the vulnerability and released software updates.

Analysis
  • To exploit this vulnerability, the attacker must send an HTTP request that submits malicious input to the targeted system, making exploitation more difficult in environments that restrict network access from untrusted sources.
Safeguards
  • 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.

Vendor Announcements
  • Splunk has released a security advisory at the following link: CVE-2018-7429
Fixed Software




Duncan Newell

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.

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