CVE-2017-1556 Denial of service in API Connect

Medium 6.5 Published Updated

An authenticated attacker can cause system slowdowns or hangs in IBM API Connect by exploiting a regular expression vulnerability.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2017-1556?

CVE-2017-1556 is a medium-severity denial of service vulnerability in Ibm Api Connect, published on 13 Sep 2017. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

IBM API Connect 5.0.7.0 through 5.0.7.2 is vulnerable to a regular expression attack that could allow an authenticated attacker to use a regex and cause the system to slow or hang. IBM X-Force ID: 131546.

Weakness: CWE-20

Which versions are affected by CVE-2017-1556?

It affects 1 product.

Products include Ibm Api Connect.

How do I fix CVE-2017-1556?

No fix has been published for CVE-2017-1556 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-2017-1556 being exploited?

There is no known exploitation of CVE-2017-1556 in the wild and no public exploit code.

All Ibm Api Connect vulnerabilities

Sources

Also known as GHSA-7c55-xcq9-wjvm.

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