# CVE-2021-1725: Bot Framework SDK Information Disclosure Vulnerability > An authentication bypass in the Bot Framework SDK allows attackers to access sensitive information without proper credentials. - **Severity:** Medium 5.5 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C`) - **Exploited in the wild:** Not known - **Login needed:** Any signed-in user - **Attackable:** Local or same network only - **Victim action needed:** Not needed - **Fix available:** Yes - **Published:** 12 Jan 2021 - **Updated:** 8 Oct 2024 - **Also known as:** GHSA-cqff-fx2x-p86v, GHSA-fvcj-hvfw-7f2v, PYSEC-2021-422 ## What is CVE-2021-1725? CVE-2021-1725 is a medium-severity authentication bypass vulnerability in Microsoft Bot Framework SDK for .NET Framework, published on 12 Jan 2021. It can only be exploited from the same machine or local network, with no action from the victim. ### Official description Bot Framework SDK Information Disclosure Vulnerability Weakness: CWE-287 (Improper Authentication) ## Which versions are affected by CVE-2021-1725? 17 open source packages ship an affected version, including botframework-connector. It affects 1 product. | Package | Ecosystem | Affected | Fixed in | | --- | --- | --- | --- | | `botframework-connector` | PyPI | From 4.10.0 | 4.10.1 | | `botframework-connector` | PyPI | From 4.10.0 | 4.10.1 | | `botframework-connector` | PyPI | From 4.7.0 | 4.7.2, 4.8.1, 4.9.3, 4.10.1 | | `botframework-connector` | PyPI | From 4.7.0 | 4.7.2 | | `botframework-connector` | PyPI | From 4.7.0 | 4.7.2 | | `botframework-connector` | PyPI | From 4.8.0 | 4.8.1 | | `botframework-connector` | PyPI | From 4.8.0 | 4.8.1 | | `botframework-connector` | PyPI | From 4.9.0 | 4.9.3 | | `botframework-connector` | PyPI | From 4.9.0 | 4.9.3 | | `botframework-connector` | npm | From 4.10.0 | 4.10.3 | | `botframework-connector` | npm | From 4.10.0 | 4.10.3 | | `botframework-connector` | npm | From 4.7.0 | 4.7.3 | | `botframework-connector` | npm | From 4.7.0 | 4.7.3 | | `botframework-connector` | npm | From 4.8.0 | 4.8.1 | | `botframework-connector` | npm | From 4.8.0 | 4.8.1 | | `botframework-connector` | npm | From 4.9.0 | 4.9.4 | | `botframework-connector` | npm | From 4.9.0 | 4.9.4 | Products: Microsoft Bot Framework Software Development Kit. ## How do I fix CVE-2021-1725? Upgrade botframework-connector to a fixed version for your release line: 4.10.1, 4.7.2, 4.8.1 or 4.9.3. ## Is CVE-2021-1725 being exploited? There is no known exploitation of CVE-2021-1725 in the wild and no public exploit code. ## Other vulnerabilities in Microsoft Bot Framework SDK for .NET Framework - [CVE-2021-43225](https://insights.sbomify.com/CVE-2021-43225/): Bot Framework SDK Remote Code Execution Vulnerability (high 7.5) ## Fix prompt for AI coding agents ```text Check this codebase for CVE-2021-1725 and fix it if it is affected. What it is: CVE-2021-1725 is a medium-severity authentication bypass vulnerability in Microsoft Bot Framework SDK for .NET Framework, published on 12 Jan 2021. It can only be exploited from the same machine or local network, with no action from the victim. Exploitation: There is no known exploitation of CVE-2021-1725 in the wild and no public exploit code. Affected packages and fixed versions: - botframework-connector (PyPI): affected from 4.10.0; fixed in 4.10.1 - botframework-connector (PyPI): affected from 4.10.0; fixed in 4.10.1 - botframework-connector (PyPI): affected from 4.7.0; fixed in 4.7.2, 4.8.1, 4.9.3, 4.10.1 - botframework-connector (PyPI): affected from 4.7.0; fixed in 4.7.2 - botframework-connector (PyPI): affected from 4.7.0; fixed in 4.7.2 - botframework-connector (PyPI): affected from 4.8.0; fixed in 4.8.1 - botframework-connector (PyPI): affected from 4.8.0; fixed in 4.8.1 - botframework-connector (PyPI): affected from 4.9.0; fixed in 4.9.3 - botframework-connector (PyPI): affected from 4.9.0; fixed in 4.9.3 - botframework-connector (npm): affected from 4.10.0; fixed in 4.10.3 - botframework-connector (npm): affected from 4.10.0; fixed in 4.10.3 - botframework-connector (npm): affected from 4.7.0; fixed in 4.7.3 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-2021-1725/ (Markdown: https://insights.sbomify.com/CVE-2021-1725/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2021-1725 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-1725 - OSV: https://osv.dev/vulnerability/CVE-2021-1725 --- From sbomify Insights: https://insights.sbomify.com/CVE-2021-1725/ Summaries are generated and may contain mistakes; the official description above is the record.