Attacker Value
Unknown
0
CVE-2021-27861
0
CVE ID
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Attacker Value
Unknown
(0 users assessed)
Exploitability
Unknown
(0 users assessed)
0
CVE-2021-27861
(Last updated October 08, 2023) ▾
MITRE ATT&CK
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Description
Layer 2 network filtering capabilities such as IPv6 RA guard can be bypassed using LLC/SNAP headers with invalid length (and optionally VLAN0 headers)
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CVSS V3 Severity and Metrics
Data provided by the National Vulnerability Database (NVD)
Base Score:
4.7 Medium
Impact Score:
1.4
Exploitability Score:
2.8
Attack Vector (AV):
Adjacent_network
Attack Complexity (AC):
Low
Privileges Required (PR):
None
User Interaction (UI):
None
Scope (S):
Changed
Confidentiality (C):
None
Integrity (I):
Low
Availability (A):
None
General Information
Offensive Application
Unknown
Utility Class
Unknown
Ports
Unknown
OS
Unknown
Vulnerable Versions
802.2 802.2h-1997
draft-ietf-v6ops-ra-guard 08
P802.1Q D1.0
Prerequisites
Unknown
Discovered By
Unknown
PoC Author
Unknown
Metasploit Module
Unknown
Reporter
Unknown
Vendors
- ieee,
- ietf
Products
- ieee 802.2,
- p802.1q
References
Additional Info
Authenticated
Unknown
Exploitable
Unknown
Reliability
Unknown
Stability
Unknown
Available Mitigations
Unknown
Shelf Life
Unknown
Userbase/Installbase
Unknown
Patch Effectiveness
Unknown
Rapid7
Technical Analysis
Report as Emergent Threat Response
Report as Exploited in the Wild
CVE ID
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