# CVE-2024-52801: Brute force takeover of OpenID Connect session cookies in sftpgo

> Attackers can brute force predictable OpenID Connect session cookies to access other users' data in SFTPGo.

- **Severity:** Medium 5.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 29 Nov 2024
- **Updated:** 2 Dec 2024
- **Also known as:** GHSA-6943-qr24-82vx, GO-2024-3300

## What is CVE-2024-52801?

CVE-2024-52801 is a medium-severity vulnerability in drakkan sftpgo, published on 29 Nov 2024. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

sftpgo is a full-featured and highly configurable event-driven file transfer solution. Server protocols: SFTP, HTTP/S, FTP/S, WebDAV. The OpenID Connect implementation allows authenticated users to brute force session cookies and thereby gain access to other users' data, since the cookies are generated predictably using the xid library and are therefore unique but not cryptographically secure. This issue was fixed in version v2.6.4, where cookies are opaque and cryptographically secure strings. All users are advised to upgrade. There are no known workarounds for this vulnerability.

Weakness: CWE-327 (Use of a Broken or Risky Cryptographic Algorithm)

## Which versions are affected by CVE-2024-52801?

4 open source packages ship an affected version, including github.com/drakkan/sftpgo/v2 and github.com/drakkan/sftpgo.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `github.com/drakkan/sftpgo/v2` | Go | From 2.3.0 | 2.6.4 |
| `github.com/drakkan/sftpgo/v2` | Go | From 2.3.0 | 2.6.4 |
| `github.com/drakkan/sftpgo/v2` | Go | From 2.3.0 | 2.6.4 |
| `github.com/drakkan/sftpgo` | Go | All versions | None |

## How do I fix CVE-2024-52801?

Upgrade github.com/drakkan/sftpgo/v2 to 2.6.4 or later.

## Is CVE-2024-52801 being exploited?

There is no known exploitation of CVE-2024-52801 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-52801 and fix it if it is affected.

What it is: CVE-2024-52801 is a medium-severity vulnerability in drakkan sftpgo, published on 29 Nov 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2024-52801 in the wild and no public exploit code.

Affected packages and fixed versions:
- github.com/drakkan/sftpgo/v2 (Go): affected from 2.3.0; fixed in 2.6.4
- github.com/drakkan/sftpgo/v2 (Go): affected from 2.3.0; fixed in 2.6.4
- github.com/drakkan/sftpgo/v2 (Go): affected from 2.3.0; fixed in 2.6.4
- github.com/drakkan/sftpgo (Go): affected all versions; no fix listed

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-2024-52801/ (Markdown: https://insights.sbomify.com/CVE-2024-52801/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-52801
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-52801
- OSV: https://osv.dev/vulnerability/CVE-2024-52801

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-52801/
Summaries are generated and may contain mistakes; the official description above is the record.