CVE-2020-6304 Denial of service in SAP NetWeaver Internet Communication Manager (KERNEL)
An attacker can cause a denial of service in SAP NetWeaver Internet Communication Manager by exploiting improper input validation.
- 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-2020-6304?
CVE-2020-6304 is a medium-severity denial of service vulnerability in SAP NetWeaver Internet Communication Manager (KERNEL), published on 14 Jan 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Improper input validation in SAP NetWeaver Internet Communication Manager (update provided in KRNL32NUC & KRNL32UC 7.21, 7.21EXT, 7.22, 7.22EXT KRNL64NUC & KRNL64UC 7.21, 7.21EXT, 7.22, 7.22EXT, 7.49 KERNEL 7.21, 7.49, 7.53) allows an attacker to prevent users from accessing its services through a denial of service.
Weakness: CWE-20
Which versions are affected by CVE-2020-6304?
It affects 5 products.
Products include Sap Netweaver Internet Communication Manager \(Kernel\), Sap Netweaver Internet Communication Manager \(Krnl32nuc\), Sap Netweaver Internet Communication Manager \(Krnl32uc\), Sap Netweaver Internet Communication Manager \(Krnl64nuc\), Sap Netweaver Internet Communication Manager \(Krnl64uc\).
How do I fix CVE-2020-6304?
No fix has been published for CVE-2020-6304 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-2020-6304 being exploited?
There is no known exploitation of CVE-2020-6304 in the wild and no public exploit code.
Sources
Also known as GHSA-86r6-3wmr-wv39.