CVE-2002-1557 Denial of service in n/a

Medium 5.0 Published 18 Mar 2003 Updated 8 Aug 2024

Attackers can cause a denial of service on Cisco ONS devices by sending malformed HTTP requests without a leading slash.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2002-1557?

CVE-2002-1557 is a medium-severity denial of service vulnerability in n/a, published on 18 Mar 2003. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Cisco ONS15454 and ONS15327 running ONS before 3.4 allows attackers to cause a denial of service (reset to TCC, TCC+, TCCi or XTC) via a malformed HTTP request that does not contain a leading / (slash) character.

Which versions are affected by CVE-2002-1557?

It affects 1 product.

Products include Cisco Optical Networking Systems Software.

How do I fix CVE-2002-1557?

No fix has been published for CVE-2002-1557 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2002-1557 being exploited?

There is no known exploitation of CVE-2002-1557 in the wild and no public exploit code.

Sources

Also known as GHSA-rvqh-qh4f-c556.