# CVE-2021-29831: XML external entity in Jazz for Service Management

> Remote attackers can exploit XML External Entity injection in IBM Jazz for Service Management to expose sensitive information or cause denial of service.

- **Severity:** High 7.1 (`CVSS:3.0/AV:N/A:L/C:H/UI:N/PR:L/S:U/I:N/AC:L/RL:O/E:U/RC:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 21 Sep 2021
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-258x-99j8-qcx3

## What is CVE-2021-29831?

CVE-2021-29831 is a high-severity vulnerability in IBM Jazz for Service Management, published on 21 Sep 2021. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

IBM Jazz for Service Management 1.1.3.10 and IBM Tivoli Netcool/OMNIbus_GUI is vulnerable to an XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources. IBM X-Force ID: 204775.

Weakness: CWE-611 (Improper Restriction of XML External Entity Reference)

## Which versions are affected by CVE-2021-29831?

It affects 2 products.


Products: Ibm Jazz for Service Management, Ibm Tivoli Netcool\/Omnibus Gui.

## How do I fix CVE-2021-29831?

No fix has been published for CVE-2021-29831 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-29831 being exploited?

There is no known exploitation of CVE-2021-29831 in the wild and no public exploit code.

## Other vulnerabilities in IBM Jazz for Service Management

- [CVE-2017-1631](https://insights.sbomify.com/CVE-2017-1631/): Cross-site request forgery in Tivoli Components (high 8.8)
- [CVE-2017-1746](https://insights.sbomify.com/CVE-2017-1746/): Cross-site request forgery in Tivoli Components (high 8.8)
- [CVE-2019-4201](https://insights.sbomify.com/CVE-2019-4201/): Open redirect in Jazz for Service Management (high 7.4)
- [CVE-2022-35722](https://insights.sbomify.com/CVE-2022-35722/): Cross-site scripting in Jazz for Service Management (medium 6.4)
- [CVE-2022-35721](https://insights.sbomify.com/CVE-2022-35721/): Cross-site scripting in Jazz for Service Management (medium 6.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-29831 and fix it if it is affected.

What it is: CVE-2021-29831 is a high-severity vulnerability in IBM Jazz for Service Management, published on 21 Sep 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-29831 in the wild and no public exploit code.

Affected product: IBM Jazz for Service Management. 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-2021-29831/ (Markdown: https://insights.sbomify.com/CVE-2021-29831/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-29831
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-29831
- OSV: https://osv.dev/vulnerability/CVE-2021-29831

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-29831/
Summaries are generated and may contain mistakes; the official description above is the record.