CVE-2006-1242 Security feature bypass in n/a
Remote attackers can bypass IP ID protections to perform Idle Scans, enabling source IP spoofing and stealthy network reconnaissance.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2006-1242?
CVE-2006-1242 is a medium-severity vulnerability in Linux kernel, published on 15 Mar 2006. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The ip_push_pending_frames function in Linux 2.4.x and 2.6.x before 2.6.16 increments the IP ID field when sending a RST after receiving unsolicited TCP SYN-ACK packets, which allows remote attackers to conduct an Idle Scan (nmap -sI) attack, which bypasses intended protections against such attacks.
Which versions are affected by CVE-2006-1242?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2006-1242?
Upgrade to a fixed version.
Is CVE-2006-1242 being exploited?
There is no known exploitation of CVE-2006-1242 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as GHSA-mrff-qcv2-jwq3.