Attacker Value
Very High
(2 users assessed)
Exploitability
Moderate
(2 users assessed)
User Interaction
None
Privileges Required
None
Attack Vector
Network
4

CVE-2020-13379

Disclosure Date: June 03, 2020
Exploited in the Wild
Reported by ericalexanderorg
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

Description

The avatar feature in Grafana 3.0.1 through 7.0.1 has an SSRF Incorrect Access Control issue. This vulnerability allows any unauthenticated user/client to make Grafana send HTTP requests to any URL and return its result to the user/client. This can be used to gain information about the network that Grafana is running on. Furthermore, passing invalid URL objects could be used for DOS’ing Grafana via SegFault.

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2
Ratings
Technical Analysis

This bug affects not only Grafana instances, but also Gitlab instances (under the /-/grafana path) and SourceTree instances (under the /-/debug/grafana/ path).

This also affects GitLab, which presumably bundles Grafana. GitLab versions prior to 13.1.1 are affected. This increases the attack surface beyond just Grafana.

While I consider this a “primitive” in an exploit chain, it will certainly be useful to bug bounty hunters and the like. Seems people on Twitter may have gotten it to work already.

General Information

References

Advisory

Additional Info

Technical Analysis