Cisco IOS 3.5S PPPoE Active Discovery Request resource management

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 5.7 | $0-$5k | 0.00 |
Summary
A vulnerability classified as problematic has been found in Cisco IOS 3.5S. This impacts an unknown function of the component PPPoE Active Discovery Request Handler. This manipulation causes resource management. This vulnerability is tracked as CVE-2015-4243. No exploit exists.
Details
A vulnerability was found in Cisco IOS 3.5S (Router Operating System). It has been declared as problematic. Affected by this vulnerability is some unknown processing of the component PPPoE Active Discovery Request Handler. The manipulation with an unknown input leads to a resource management vulnerability. The CWE definition for the vulnerability is CWE-399. As an impact it is known to affect availability.
The weakness was disclosed 07/07/2015 with Cisco as 39675 as confirmed vulnerability alert (Website). It is possible to read the advisory at tools.cisco.com. This vulnerability is known as CVE-2015-4243 since 06/04/2015. The exploitation appears to be easy. Access to the local network is required for this attack to succeed. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.
The vulnerability is also documented in the databases at X-Force (104426), SecurityFocus (BID 75585†) and Vulnerability Center (SBV-51050†). Be aware that VulDB is the high quality source for vulnerability data.
Product
Type
Vendor
Name
Version
License
Website
- Vendor: https://www.cisco.com/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.5VulDB Meta Temp Score: 5.7
VulDB Base Score: 6.5
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Resource managementCWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Partially
Availability: 🔍
Status: Unproven
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Timeline
06/04/2015 🔍07/07/2015 🔍
07/07/2015 🔍
07/08/2015 🔍
07/08/2015 🔍
07/08/2015 🔍
07/09/2015 🔍
05/23/2022 🔍
Sources
Vendor: cisco.comAdvisory: 39675
Organization: Cisco
Status: Confirmed
CVE: CVE-2015-4243 (🔍)
GCVE (CVE): GCVE-0-2015-4243
GCVE (VulDB): GCVE-100-76327
X-Force: 104426 - Cisco IOS XE PPP over Ethernet denial of service
SecurityFocus: 75585 - Cisco IOS XE Software For 1000 Series ASR Routers CVE-2015-4243 Denial of Service Vulnerability
SecurityTracker: 1032805
Vulnerability Center: 51050 - Cisco IOS XE 3.5.0S on ASR 1000 Remote DoS via Crafted PADR Packets, Medium
Entry
Created: 07/08/2015 09:44Updated: 05/23/2022 15:35
Changes: 07/08/2015 09:44 (54), 07/10/2017 09:07 (9), 05/23/2022 15:35 (4)
Complete: 🔍
Cache ID: 216:8C9:103
Be aware that VulDB is the high quality source for vulnerability data.
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