# CVE-2023-33847: IBM CICS TX information disclosure

> Attackers can steal session cookies via insecure HTTP links, potentially leading to account takeover in IBM CICS TX products.

- **Severity:** Low 3.7 (`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 8 Jun 2023
- **Updated:** 6 Jan 2025
- **Also known as:** GHSA-c9q9-xjvm-h6gf

## What is CVE-2023-33847?

CVE-2023-33847 is a low-severity vulnerability in IBM CICS TX Advanced, published on 8 Jun 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

IBM TXSeries for Multiplatforms 8.1, 8.2, 9.1, CICS TX Standard, 11.1, CICS TX Advanced 10.1, and 11.1 does not set the secure attribute on authorization tokens or session cookies. Attackers may be able to get the cookie values by sending a http:// link to a user or by planting this link in a site the user goes to. The cookie will be sent to the insecure link and the attacker can then obtain the cookie value by snooping the traffic. IBM X-Force ID: 257102.

## Which versions are affected by CVE-2023-33847?

It affects 2 products.


Products: Ibm Cics Tx, Ibm Txseries for Multiplatform.

## How do I fix CVE-2023-33847?

No fix has been published for CVE-2023-33847 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-33847 being exploited?

There is no known exploitation of CVE-2023-33847 in the wild and no public exploit code.

## Other vulnerabilities in IBM CICS TX Advanced

- [CVE-2022-31767](https://insights.sbomify.com/CVE-2022-31767/): Command injection in CICS TX Advanced (critical 9.8)
- [CVE-2025-1329](https://insights.sbomify.com/CVE-2025-1329/): IBM CICS TX code execution (high 7.8)
- [CVE-2025-1330](https://insights.sbomify.com/CVE-2025-1330/): IBM CICS TX code execution (high 7.8)
- [CVE-2025-1331](https://insights.sbomify.com/CVE-2025-1331/): IBM CICS TX code execution (high 7.8)
- [CVE-2023-33850](https://insights.sbomify.com/CVE-2023-33850/): IBM GSKit-Crypto information disclosure (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-33847 and fix it if it is affected.

What it is: CVE-2023-33847 is a low-severity vulnerability in IBM CICS TX Advanced, published on 8 Jun 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-33847 in the wild and no public exploit code.

Affected product: IBM CICS TX Advanced. No package-level version data is available, so check the vendor advisory linked from the reference page.

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-2023-33847/ (Markdown: https://insights.sbomify.com/CVE-2023-33847/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-33847
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-33847
- OSV: https://osv.dev/vulnerability/CVE-2023-33847

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-33847/
Summaries are generated and may contain mistakes; the official description above is the record.