# CVE-2023-27987: Apache Linkis gateway module token authentication bypass - **Severity:** Critical 9.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N`) - **Exploited in the wild:** Not known - **Fix available:** Yes - **Published:** 10 Apr 2023 - **Updated:** 17 Oct 2024 - **Also known as:** GHSA-4x5h-xmv4-99wx ## What is CVE-2023-27987? CVE-2023-27987 is a critical vulnerability in Apache Linkis, published on 10 Apr 2023. ### Official description In Apache Linkis <=1.3.1, due to the default token generated by Linkis Gateway deployment being too simple, it is easy for attackers to obtain the default token for the attack. Generation rules should add random values. We recommend users upgrade the version of Linkis to version 1.3.2 And modify the default token value. You can refer to Token authorization[1] https://linkis.apache.org/docs/latest/auth/token https://linkis.apache.org/docs/latest/auth/token Weakness: CWE-326 (Inadequate Encryption Strength) ## Which versions are affected by CVE-2023-27987? 2 open source packages ship an affected version, including org.apache.linkis:linkis. It affects 1 product. | Package | Ecosystem | Affected | Fixed in | | --- | --- | --- | --- | | `org.apache.linkis:linkis` | Maven | All versions | 1.3.2 | | `org.apache.linkis:linkis` | Maven | All versions | 1.3.2 | Products: Apache Linkis. ## How do I fix CVE-2023-27987? Upgrade org.apache.linkis:linkis to 1.3.2 or later. ## Is CVE-2023-27987 being exploited? There is no known exploitation of CVE-2023-27987 in the wild and no public exploit code. ## Other vulnerabilities in Apache Linkis - [CVE-2023-27602](https://insights.sbomify.com/CVE-2023-27602/): Apache Linkis publicsercice module unrestricted upload of file (critical 9.8) - [CVE-2023-27603](https://insights.sbomify.com/CVE-2023-27603/): Apache Linkis Mangaer module engineConn material upload exists Zip Slip issue (critical 9.8) - [CVE-2023-29215](https://insights.sbomify.com/CVE-2023-29215/): Apache Linkis JDBC EngineCon has a deserialization command execution (critical 9.8) - [CVE-2023-29216](https://insights.sbomify.com/CVE-2023-29216/): Apache Linkis DatasourceManager module has a deserialization command execution (critical 9.8) - [CVE-2024-27181](https://insights.sbomify.com/CVE-2024-27181/): Apache Linkis Basic management services: Privilege Escalation Attack vulnerability (high 8.8) ## Fix prompt for AI coding agents ```text Check this codebase for CVE-2023-27987 and fix it if it is affected. What it is: CVE-2023-27987 is a critical vulnerability in Apache Linkis, published on 10 Apr 2023. Exploitation: There is no known exploitation of CVE-2023-27987 in the wild and no public exploit code. Affected packages and fixed versions: - org.apache.linkis:linkis (Maven): affected all versions; fixed in 1.3.2 - org.apache.linkis:linkis (Maven): affected all versions; fixed in 1.3.2 Task: 1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies. 2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it. 3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead. 4. Run the tests and summarise what changed and why. 5. If nothing in the project is affected, say so and change nothing. Reference: https://insights.sbomify.com/CVE-2023-27987/ (Markdown: https://insights.sbomify.com/CVE-2023-27987/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2023-27987 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-27987 - OSV: https://osv.dev/vulnerability/CVE-2023-27987 --- From sbomify Insights: https://insights.sbomify.com/CVE-2023-27987/ Summaries are generated and may contain mistakes; the official description above is the record.