# CVE-2017-9491: Information disclosure in n/a

> Attackers can intercept session cookies due to missing secure flags, potentially leading to unauthorized access to the device administration interface.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/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:** 31 Jul 2017
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-7cwf-4w8q-r838

## What is CVE-2017-9491?

CVE-2017-9491 is a medium-severity vulnerability in n/a, published on 31 Jul 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The Comcast firmware on Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421733-160420a-CMCST); Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421746-170221a-CMCST); Cisco DPC3939B (firmware version dpc3939b-v303r204217-150321a-CMCST); Cisco DPC3941T (firmware version DPC3941_2.5s3_PROD_sey); and Arris TG1682G (eMTA&DOCSIS version 10.0.132.SIP.PC20.CT, software version TG1682_2.2p7s2_PROD_sey) devices does not set the secure flag for cookies in an https session to an administration application, which makes it easier for remote attackers to capture these cookies by intercepting their transmission within an http session.

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

## Which versions are affected by CVE-2017-9491?

It affects 4 products.


Products: Cisco Dpc3939 Firmware, Cisco Dpc3939b Firmware, Cisco Dpc3941t Firmware, Commscope Arris Tg1682g Firmware.

## How do I fix CVE-2017-9491?

No fix has been published for CVE-2017-9491 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-9491 being exploited?

There is no known exploitation of CVE-2017-9491 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2017-9479](https://insights.sbomify.com/CVE-2017-9479/): Command injection in n/a (critical 9.8)
- [CVE-2017-9482](https://insights.sbomify.com/CVE-2017-9482/): Auth bypass in n/a (critical 9.8)
- [CVE-2017-9483](https://insights.sbomify.com/CVE-2017-9483/): Command injection in n/a (critical 9.8)
- [CVE-2017-9521](https://insights.sbomify.com/CVE-2017-9521/): Other in n/a (critical 9.8)
- [CVE-2017-9488](https://insights.sbomify.com/CVE-2017-9488/): Hardcoded credentials in n/a (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-9491 and fix it if it is affected.

What it is: CVE-2017-9491 is a medium-severity vulnerability in n/a, published on 31 Jul 2017. 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-2017-9491 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-2017-9491/ (Markdown: https://insights.sbomify.com/CVE-2017-9491/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-9491
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-9491
- OSV: https://osv.dev/vulnerability/CVE-2017-9491

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-9491/
Summaries are generated and may contain mistakes; the official description above is the record.