# CVE-2015-4138: Information disclosure in n/a

> Missing HTTPOnly flag on admin cookie allows attackers to steal session data via script access, potentially leading to account takeover.

- **Severity:** Medium 4.3 (`AV:N/AC:M/Au:N/C:P/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 30 May 2015
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-phr7-2889-ff4v

## What is CVE-2015-4138?

CVE-2015-4138 is a medium-severity vulnerability in n/a, published on 30 May 2015. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

The WebUI component in Blue Coat SSL Visibility Appliance SV800, SV1800, SV2800, and SV3800 3.6.x through 3.8.x before 3.8.4 does not include the HTTPOnly flag in a Set-Cookie header for the administrator's cookie, which makes it easier for remote attackers to obtain potentially sensitive information via script access to this cookie, a different vulnerability than CVE-2015-2855.

Weakness: CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2015-4138?

It affects 4 products.


Products: Blue Coat Ssl Visibility Appliance Sv1800 Firmware, Blue Coat Ssl Visibility Appliance Sv2800 Firmware, Blue Coat Ssl Visibility Appliance Sv3800 Firmware, Blue Coat Ssl Visibility Appliance Sv800 Firmware.

## How do I fix CVE-2015-4138?

No fix has been published for CVE-2015-4138 yet. Limit exposure of the affected software until one is available.

## Is CVE-2015-4138 being exploited?

There is no known exploitation of CVE-2015-4138 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2015-2853](https://insights.sbomify.com/CVE-2015-2853/): Auth bypass in n/a (medium 6.8)
- [CVE-2015-2852](https://insights.sbomify.com/CVE-2015-2852/): Cross-site request forgery in n/a (medium 4.3)
- [CVE-2015-2854](https://insights.sbomify.com/CVE-2015-2854/): Other in n/a (medium 4.3)
- [CVE-2015-2855](https://insights.sbomify.com/CVE-2015-2855/): Information disclosure in n/a (medium 4.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2015-4138 and fix it if it is affected.

What it is: CVE-2015-4138 is a medium-severity vulnerability in n/a, published on 30 May 2015. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2015-4138 in the wild and no public exploit code.

Affected product: n/a. 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-2015-4138/ (Markdown: https://insights.sbomify.com/CVE-2015-4138/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2015-4138
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2015-4138
- OSV: https://osv.dev/vulnerability/CVE-2015-4138

---
From sbomify Insights: https://insights.sbomify.com/CVE-2015-4138/
Summaries are generated and may contain mistakes; the official description above is the record.