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Security Advisories: GSA_kwCzR0hTQS1janI5LW1yMzUtN3hoNs4AAywj
SpiceDB binding metrics port to untrusted networks and can leak command-line flags
Background
The spicedb serve
command contains a flag named --grpc-preshared-key
which is used to protect the gRPC API from being accessed by unauthorized requests. The values of this flag are to be considered sensitive, secret data.
The /debug/pprof/cmdline
endpoint served by the metrics service (defaulting running on port 9090
) reveals the command-line flags provided for debugging purposes. If a password is set via the --grpc-preshared-key
then the key is revealed by this endpoint along with any other flags provided to the SpiceDB binary.
Impact
All deployments abiding by the recommended best practices for production usage are NOT affected:
- Authzed's SpiceDB Serverless
- Authzed's SpiceDB Dedicated
- SpiceDB Operator
Users configuring SpiceDB via environment variables are NOT affected.
Users MAY be affected if they expose their metrics port to an untrusted network and are configuring --grpc-preshared-key
via command-line flag.
Workarounds
To workaround this issue you can do one of the following:
- Configure the preshared key via an environment variable (e.g.
SPICEDB_GRPC_PRESHARED_KEY=yoursecret spicedb serve
) - Reconfigure the
--metrics-addr
flag to bind to a trusted network (e.g.--metrics-addr=localhost:9090
) - Disable the metrics service via the flag (e.g.
--metrics-enabled=false
) - Adopt one of the recommended deployment models: Authzed's managed services or the SpiceDB Operator
References
- GitHub Security Advisory issued for SpiceDB
- Go issue #22085 for documenting the risks of exposing pprof to the internet
- Go issue #42834 discusses preventing pprof registration to the default serve mux
- semgrep rule go.lang.security.audit.net.pprof.pprof-debug-exposure checks for a variation of this issue
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS1janI5LW1yMzUtN3hoNs4AAywj
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: about 1 year ago
Updated: about 1 year ago
CVSS Score: 8.1
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Identifiers: GHSA-cjr9-mr35-7xh6, CVE-2023-29193
References:
- https://github.com/authzed/spicedb/security/advisories/GHSA-cjr9-mr35-7xh6
- https://github.com/authzed/spicedb/commit/9bbd7d76b6eaba33fe0236014f9b175d21232999
- https://nvd.nist.gov/vuln/detail/CVE-2023-29193
- https://github.com/authzed/spicedb/releases/tag/v1.19.1
- https://github.com/advisories/GHSA-cjr9-mr35-7xh6
Blast Radius: 10.0
Affected Packages
go:github.com/authzed/spicedb
Dependent packages: 9Dependent repositories: 17
Downloads:
Affected Version Ranges: < 1.19.1
Fixed in: 1.19.1
All affected versions: 0.0.1, 0.0.2, 0.0.3, 1.0.0, 1.1.0, 1.2.0, 1.3.0, 1.4.0, 1.5.0, 1.6.0, 1.7.0, 1.7.1, 1.8.0, 1.9.0, 1.10.0, 1.11.0, 1.12.0, 1.13.0, 1.14.0, 1.14.1, 1.15.0, 1.16.0, 1.16.1, 1.16.2, 1.17.0, 1.18.0, 1.18.1, 1.19.0
All unaffected versions: 1.19.1, 1.20.0, 1.21.0, 1.22.0, 1.22.1, 1.22.2, 1.23.0, 1.23.1, 1.24.0, 1.25.0, 1.26.0, 1.27.0, 1.28.0, 1.29.0, 1.29.1, 1.29.2, 1.29.4, 1.29.5, 1.30.0, 1.30.1, 1.31.0