GHSA-W8VQ-3HF9-XPPX
Vulnerability from github – Published: 2023-09-07 12:58 – Updated: 2023-09-08 21:04Impact
This is a Denial-of-Service (DoS) type vulnerability which causes the Router to panic and terminate when GraphQL Subscriptions are enabled. It can be triggered when all of the following conditions are met:
- Running Apollo Router v1.28.0, v1.28.1 or v1.29.0 ("impacted versions"); and
- The Supergraph schema provided to the Router (either via Apollo Uplink or explicitly via other configuration) has a
subscriptiontype with root-fields defined; and - The YAML configuration provided to the Router has subscriptions enabled (they are disabled by default), either by setting
enabled: trueor by setting a validmodewithin thesubscriptionsobject (as seen in subscriptions' documentation); and - An anonymous (i.e., un-named)
subscriptionoperation (e.g.,subscription { ... }) is received by the Router
If all four of these criteria are met, the impacted versions will panic and terminate. There is no data-privacy risk or sensitive-information exposure aspect to this vulnerability.
Depending on the environment in which impacted versions are running and the high-availability characteristics of that environment, a single Router's termination may result in limited or reduced availability or other knock-on effects which are deployment-specific (e.g., depending on if there are multiple instances, auto-restart policies, etc.)
Discovery
This vulnerability was discovered by an internal Apollo team. We have no reports or evidence to support that that has been exploited outside of our own testing, research and follow-up.
Our public security policy can be reviewed at https://github.com/apollographql/router/security/policy and we consider the security of our projects a top priority. Please review the linked policy for more details.
Patches
This is fixed in Apollo Router v1.29.1, which is available on:
- GitHub Releases as
v1.29.1 - GitHub Packages Container Registry as
v1.29.1 - Helm Chart Repository as
1.29.1(without thev)
We recommend all users running the impacted configuration above to update to a patched version of the Router immediately. Router v1.29.1 should be a very simple upgrade from any impacted version.
Workarounds
Updating to v1.29.1 should be a clear and simple upgrade path for those running impacted versions. However, if Subscriptions are not necessary for your Graph – but are enabled via configuration — then disabling subscriptions is another option to mitigate the risk.
For more information
If you have any questions or comments about this advisory:
- Open an issue in the
routerrepository - Email us at
security[at]apollographql[dot]com
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 1.29.0"
},
"package": {
"ecosystem": "crates.io",
"name": "apollo-router"
},
"ranges": [
{
"events": [
{
"introduced": "1.28.0"
},
{
"fixed": "1.29.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2023-41317"
],
"database_specific": {
"cwe_ids": [
"CWE-755"
],
"github_reviewed": true,
"github_reviewed_at": "2023-09-07T12:58:29Z",
"nvd_published_at": "2023-09-05T19:15:48Z",
"severity": "MODERATE"
},
"details": "### Impact\n\nThis is a Denial-of-Service (DoS) type vulnerability which causes the Router to panic and terminate when GraphQL Subscriptions are enabled. It can be triggered when **all of the following conditions are met**:\n\n1. Running Apollo Router v1.28.0, v1.28.1 or v1.29.0 (\"impacted versions\"); **and**\n2. The Supergraph schema provided to the Router (either via Apollo Uplink or explicitly via other configuration)\u00a0**has a `subscription` type** with root-fields defined; **and**\n3. The YAML configuration provided to the Router **has subscriptions enabled** (they are _disabled_ by default), either by setting `enabled: true` _or_ by setting a valid `mode` within the `subscriptions` object (as seen in [subscriptions\u0027 documentation](https://www.apollographql.com/docs/router/executing-operations/subscription-support/#router-setup)); **and**\n4. An [anonymous](https://spec.graphql.org/draft/#sec-Anonymous-Operation-Definitions) (i.e., un-named) `subscription` operation (e.g., `subscription { ... }`) is received by the Router\n\nIf **all four** of these criteria are met, the impacted versions will panic and terminate. There is no data-privacy risk or sensitive-information exposure aspect to this vulnerability.\n\nDepending on the environment in which impacted versions are running and the high-availability characteristics of that environment, a single Router\u0027s termination may result in limited or reduced availability or other knock-on effects which are deployment-specific (e.g., depending on if there are multiple instances, auto-restart policies, etc.)\n\n### Discovery\n\nThis vulnerability was discovered by an internal Apollo team. We have no reports or evidence to support that that has been exploited outside of our own testing, research and follow-up.\n\nOur public security policy can be reviewed at https://github.com/apollographql/router/security/policy and we consider the security of our projects a top priority. Please review the linked policy for more details.\n\n### Patches\n\nThis is fixed in [Apollo Router v1.29.1](https://github.com/apollographql/router/releases/tag/v1.29.1), which is available on:\n\n- [GitHub Releases](https://github.com/apollographql/router/releases) as `v1.29.1`\n- [GitHub Packages Container Registry](https://github.com/apollographql/router/pkgs/container/router) as `v1.29.1`\n- [Helm Chart Repository](https://github.com/apollographql/router/pkgs/container/helm-charts%2Frouter) as `1.29.1` (without the `v`)\n\nWe recommend all users running the impacted configuration above to update to a patched version of the Router immediately. Router v1.29.1 should be a very simple upgrade from any impacted version. \n\n### Workarounds\n\nUpdating to v1.29.1 should be a clear and simple upgrade path for those running impacted versions. However, if Subscriptions are **not** necessary for your Graph \u2013 but are enabled via configuration \u2014 then disabling subscriptions is another option to mitigate the risk.\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n\n* Open an issue in [the `router` repository](https://github.com/apollographql/router)\n* Email us at `security` `[at]` `apollographql` `[dot]` `com`",
"id": "GHSA-w8vq-3hf9-xppx",
"modified": "2023-09-08T21:04:38Z",
"published": "2023-09-07T12:58:29Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/apollographql/router/security/advisories/GHSA-w8vq-3hf9-xppx"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-41317"
},
{
"type": "WEB",
"url": "https://github.com/apollographql/router/commit/b295c103dd86c57c848397d32e8094edfa8502aa"
},
{
"type": "PACKAGE",
"url": "https://github.com/apollographql/router"
},
{
"type": "WEB",
"url": "https://github.com/apollographql/router/releases/tag/v1.29.1"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "Apollo Router Unnamed \"Subscription\" operation results in Denial-of-Service"
}
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.