GHSA-rqjq-ww83-wv5c BIT-consul-2023-2816 CVE-2023-2816 GO-2023-1828
Hashicorp Consul allows user with service:write permissions to patch remote proxy instances
- Severity
- 8.7 / 10
- Medium · CVSS 3.1
- Exploit chance (EPSS)
- 0.58%
- Chance of exploitation in the next 30 days. Higher than 47.98% of scored vulnerabilities.
- Known exploited
- No
- Not in CISA's catalog
- Weakness
- CWE-266 Incorrect Privilege Assignment
- Fix
1.15.3- Upgrade github.com/hashicorp/consul to this version or later
Description
Consul and Consul Enterprise allowed any user with service:write permissions to use Envoy extensions configured via service-defaults to patch remote proxy instances that target the configured service, regardless of whether the user has permission to modify the service(s) corresponding to those modified proxies.
Affected versions
Go
| Package | Vulnerable | Fixed in |
|---|---|---|
| github.com/hashicorp/consul | >= 1.15.0, < 1.15.3 |
1.15.3 |
How to fix
Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.
github.com/hashicorp/consul Go → 1.15.3
- go
go get github.com/hashicorp/consul@v1.15.3 && go mod tidy
Severity breakdown
CVSS 3.1 8.7
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- High
- User interaction
- None
- Scope
- Changed
- Confidentiality
- High
- Integrity
- High
- Availability
- None
Weakness
CWE-266: Incorrect Privilege Assignment
A product incorrectly assigns a privilege to a particular actor, creating an unintended sphere of control for that actor.
How to prevent it
- Architecture and Design, Operation: Very carefully manage the setting, management, and handling of privileges. Explicitly manage trust zones in the software.
- Architecture and Design, Operation: Run your code using the lowest privileges that are required to accomplish the necessary tasks [REF-76]. If possible, create isolated accounts with limited privileges that are only used for a single task. That way, a successful attack will not immediately give the attacker access to the rest of the software or its environment. For example, database applications rarely need to run as the database administrator, especially in day-to-day operations.
References
Advisories
Packages
Other links
Timeline
- Published
- Last updated by the source
- Latest EPSS score
Related advisories
| Advisory | Severity | Why it's related |
|---|---|---|
| GHSA-cpfq-66p2-336j Consul is vulnerable to arbitrary file read when configured with Kubernetes authentication | Medium | Also affects github.com/hashicorp/consul |
| GHSA-qh7p-pfq3-677h Consul event endpoint is vulnerable to denial of service | Medium | Also affects github.com/hashicorp/consul |
| GHSA-7g3r-8c6v-hfmr Consul key/value endpoint is vulnerable to denial of service | Medium | Also affects github.com/hashicorp/consul |
| GHSA-99wr-c2px-grmh Hashicorp Consul Cross-site Scripting vulnerability | Medium | Also affects github.com/hashicorp/consul |
| GHSA-5c4w-8hhh-3c3h Hashicorp Consul Improper Neutralization of HTTP Headers for Scripting Syntax vulnerability | Medium | Also affects github.com/hashicorp/consul |
| GHSA-chgm-7r52-whjj Hashicorp Consul Path Traversal vulnerability | Medium | Also affects github.com/hashicorp/consul |
| GHSA-6m72-467w-94rh Privilege Escalation in HashiCorp Consul | Medium | Also affects github.com/hashicorp/consul |
| GHSA-496g-fr33-whrf Denial of service in HashiCorp Consul | High | Also affects github.com/hashicorp/consul |
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