CVE-1999-0445 Security feature bypass in n/a
Medium 5.0
Published
Updated
Check this codebase for CVE-1999-0445 and fix it if it is affected.
What it is: CVE-1999-0445 is a medium-severity vulnerability in Cisco Ios, published on 29 Sep 1999. 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-1999-0445 in the wild and no public exploit code.
Affected product: Cisco Ios. 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-1999-0445/ (Markdown: https://insights.sbomify.com/CVE-1999-0445/index.md)
Attackers can bypass input access list filters on Cisco routers running NAT, allowing unauthorized network access.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-1999-0445?
CVE-1999-0445 is a medium-severity vulnerability in Cisco Ios, published on 29 Sep 1999. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In Cisco routers under some versions of IOS 12.0 running NAT, some packets may not be filtered by input access list filters.
Which versions are affected by CVE-1999-0445?
It affects 1 product.
Products include Cisco Ios.
How do I fix CVE-1999-0445?
No fix has been published for CVE-1999-0445 yet. Limit exposure of the affected software until one is available.
Is CVE-1999-0445 being exploited?
There is no known exploitation of CVE-1999-0445 in the wild and no public exploit code.
Other vulnerabilities in Cisco Ios
- CVE-2017-12240 Cisco IOS and IOS XE Software DHCP Remote Code Execution
- CVE-2017-3881 Cisco IOS and IOS XE Remote Code Execution
- CVE-2018-0167 Cisco IOS, XR, and XE Software Buffer Overflow
- CVE-2017-6736 Cisco IOS and IOS XE Software SNMP Remote Code Execution
- CVE-2017-6737 Cisco IOS and IOS XE Software SNMP Remote Code Execution
Sources
Also known as GHSA-mxqr-f78q-hq6p.