Apollo Router prior 1.29.1 exceptional condition

Summaryinfo

A vulnerability identified as critical has been detected in Apollo Router. This impacts an unknown function. Performing a manipulation results in exceptional condition. This vulnerability was named CVE-2023-41317. The attack may be initiated remotely. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Apollo Router (Router Operating System). This affects some unknown functionality. The manipulation with an unknown input leads to a exceptional condition vulnerability. CWE is classifying the issue as CWE-755. The product does not handle or incorrectly handles an exceptional condition. This is going to have an impact on availability. The summary by CVE is:

The Apollo Router is a configurable, high-performance graph router written in Rust to run a federated supergraph that uses Apollo Federation 2. Affected versions are subject to 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**: 1. Running Apollo Router v1.28.0, v1.28.1 or v1.29.0 ("impacted versions"); **and** 2. The Supergraph schema provided to the Router (either via Apollo Uplink or explicitly via other configuration) **has a `subscription` type** with root-fields defined; **and** 3. 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' documentation](https://www.apollographql.com/docs/router/executing-operations/subscription-support/#router-setup)); **and** 4. 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 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. This is fixed in Apollo Router v1.29.1. Users are advised to upgrade. 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.

The weakness was presented 09/06/2023 as GHSA-w8vq-3hf9-xppx. It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2023-41317 since 08/28/2023. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 1.29.1 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch b295c103dd86c57c848397d32e8094edfa8502aa is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Type

• Router Operating System

Vendor

• Apollo

Name

• Router

License

• open-source

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CPE 2.2info

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