Quick answers
- Is CVE-1999-0513 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-1999-0513 being exploited in the wild.
- How severe is CVE-1999-0513?
- Medium severity, with a CVSS score of 5, published 5 January 1998.
- Which products and versions are affected?
- Sun Solaris 2.4, 2.5, 2.5.1, 2.6; Sun SunOS 5.4, 5.5, 5.5.1.
- Is there a fix for CVE-1999-0513?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-1999-0513 attacked?
- It is attacked over the network, in an operating system.
- Am I affected by CVE-1999-0513?
- Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The operating system's IP stack incorrectly responds to ICMP Echo Request (ping) messages sent to a broadcast address. An attacker can spoof the source IP address of these requests to be that of a target victim. When the network's hosts receive the broadcast request, they all respond simultaneously to the victim's IP address, leading to a distributed denial-of-service (DDoS) condition known as a Smurf attack. This is a network-based attack requiring no authentication. Mitigation typically involves configuring the OS or network routers to ignore directed broadcasts and ICMP requests to broadcast addresses.
Affected products
- Sun Solaris 2.4, 2.5, 2.5.1, 2.6
- Sun SunOS 5.4, 5.5, 5.5.1
Timeline
- 1998-01-05: disclosed