CVE-2017-12112 Missing authorization in CPP-Ethereum
An attacker can bypass authorization checks in the admin_addPeer API to access restricted functionality in the Ethereum client.
- 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-2017-12112?
CVE-2017-12112 is a medium-severity missing authorization vulnerability in Talos CPP-Ethereum, published on 19 Jan 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An exploitable improper authorization vulnerability exists in admin_addPeer API of cpp-ethereum's JSON-RPC (commit 4e1015743b95821849d001618a7ce82c7c073768). A JSON request can cause an access to the restricted functionality resulting in authorization bypass. An attacker can send JSON to trigger this vulnerability.
Weakness: CWE-863
Which versions are affected by CVE-2017-12112?
It affects 1 product.
Products include Ethereum Cpp-Ethereum.
How do I fix CVE-2017-12112?
No fix has been published for CVE-2017-12112 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2017-12112 being exploited?
There is no known exploitation of CVE-2017-12112 in the wild and no public exploit code.
Other vulnerabilities in Talos CPP-Ethereum
Sources
Also known as GHSA-3h5j-fwx4-2458.