# CVE-2019-4563: Security feature bypass in Security Directory Server

> Attackers can steal session cookies via insecure HTTP links, potentially leading to account takeover or data exposure in IBM Security Directory Server.

- **Severity:** Low 3.7 (`CVSS:3.0/I:N/AV:N/C:L/A:N/UI:N/AC:H/S:U/PR:N/RC:C/E:U/RL:O`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 29 Oct 2020
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-2ghm-cqrg-hhpv

## What is CVE-2019-4563?

CVE-2019-4563 is a low-severity vulnerability in IBM Security Directory Server, published on 29 Oct 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

IBM Security Directory Server 6.4.0 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: 166624.

Weakness: CWE-384 (Session Fixation)

## Which versions are affected by CVE-2019-4563?

It affects 1 product.


Products: Ibm Security Directory Server.

## How do I fix CVE-2019-4563?

No fix has been published for CVE-2019-4563 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-4563 being exploited?

There is no known exploitation of CVE-2019-4563 in the wild and no public exploit code.

## Other vulnerabilities in IBM Security Directory Server

- [CVE-2022-33164](https://insights.sbomify.com/CVE-2022-33164/): IBM Security Directory Server path traversal (high 8.7)
- [CVE-2019-4520](https://insights.sbomify.com/CVE-2019-4520/): Security feature bypass in Security Directory Server (high 7.5)
- [CVE-2015-1977](https://insights.sbomify.com/CVE-2015-1977/): Path traversal in n/a (high 7.5)
- [CVE-2019-4538](https://insights.sbomify.com/CVE-2019-4538/): Open redirect in Security Directory Server (high 7.4)
- [CVE-2019-4539](https://insights.sbomify.com/CVE-2019-4539/): XML external entity in Security Directory Server (high 7.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-4563 and fix it if it is affected.

What it is: CVE-2019-4563 is a low-severity vulnerability in IBM Security Directory Server, published on 29 Oct 2020. 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-2019-4563 in the wild and no public exploit code.

Affected product: IBM Security Directory Server. 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-2019-4563/ (Markdown: https://insights.sbomify.com/CVE-2019-4563/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-4563
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-4563
- OSV: https://osv.dev/vulnerability/CVE-2019-4563

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-4563/
Summaries are generated and may contain mistakes; the official description above is the record.