CVE-2019-8336 HashiCorp Consul Access Restriction Bypass
Attackers can bypass access restrictions to obtain privileges of arbitrary tokens in secondary datacenters by exploiting a hardcoded secret value.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2019-8336?
CVE-2019-8336 is a high-severity authentication bypass vulnerability in n/a, published on 5 Mar 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
HashiCorp Consul (and Consul Enterprise) 1.4.x before 1.4.3 allows a client to bypass intended access restrictions and obtain the privileges of one other arbitrary token within secondary datacenters, because a token with literally "<hidden>" as its secret is used in unusual circumstances.
Which versions are affected by CVE-2019-8336?
3 open source packages ship an affected version, including github.com/hashicorp/consul. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
github.com/hashicorp/consul Go | From 1.4.0 | 1.4.3 |
github.com/hashicorp/consul Go | From 1.4.0 | 1.4.3 |
github.com/hashicorp/consul Go | From 1.4.0 | 1.4.3 |
Products include Hashicorp Consul.
How do I fix CVE-2019-8336?
Upgrade github.com/hashicorp/consul to 1.4.3 or later.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2019-8336 being exploited?
There is no known exploitation of CVE-2019-8336 in the wild and no public exploit code.
Other vulnerabilities in n/a
- CVE-2021-41805 Privilege escalation in n/a
- CVE-2021-37219 HashiCorp Consul Privilege Escalation Vulnerability
- CVE-2023-2816 Consul Envoy Extension Downsteam Proxy Configuration By Upstream Service Owner
- CVE-2024-10006 Consul L7 Intentions Vulnerable To Headers Bypass
- CVE-2024-10005 Consul L7 Intentions Vulnerable To URL Path Bypass
Sources
Also known as GHSA-fhm8-cxcv-pwvc, GO-2023-1945.