CVE-2015-4243
First published: Wed Jul 08 2015(Updated: )
The PPPoE establishment implementation in Cisco IOS XE 3.5.0S on ASR 1000 devices allows remote attackers to cause a denial of service (device reload) by sending malformed PPPoE Active Discovery Request (PADR) packets on the local network, aka Bug ID CSCty94202.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco IOS XE Software | =3.5.0s | |
| Cisco ASR 1001 | ||
| Cisco ASR 1001-X | ||
| Cisco ASR 1002 Fixed Router | ||
| Cisco ASR 1002-X | ||
| Cisco ASR 1004 | ||
| Cisco ASR 1006 | ||
| Cisco ASR 1013 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2015-4243?
CVE-2015-4243 is classified as a denial of service vulnerability that could lead to device reload.
How do I fix CVE-2015-4243?
To mitigate CVE-2015-4243, ensure that your Cisco IOS XE is updated to a non-vulnerable version.
Which devices are affected by CVE-2015-4243?
CVE-2015-4243 specifically affects Cisco IOS XE 3.5.0S running on ASR 1000 devices.
What type of attack does CVE-2015-4243 involve?
CVE-2015-4243 involves remote attackers sending malformed PPPoE Active Discovery Request packets.
Is the vulnerability CVE-2015-4243 exploitable over the internet?
Yes, the vulnerability can potentially be exploited by remote attackers on the local network.
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