Attacker Value
Unknown
0
CVE-2017-18922
0
CVE ID
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CVE-2017-18922
(Last updated November 08, 2023) ▾
MITRE ATT&CK
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Initial Access
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Persistence
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Description
It was discovered that websockets.c in LibVNCServer prior to 0.9.12 did not properly decode certain WebSocket frames. A malicious attacker could exploit this by sending specially crafted WebSocket frames to a server, causing a heap-based buffer overflow.
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CVSS V3 Severity and Metrics
Data provided by the National Vulnerability Database (NVD)
Base Score:
9.8 Critical
Impact Score:
5.9
Exploitability Score:
3.9
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
None
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
High
Availability (A):
High
General Information
Offensive Application
Unknown
Utility Class
Unknown
Ports
Unknown
OS
Unknown
Vulnerable Versions
n/a
Prerequisites
Unknown
Discovered By
Unknown
PoC Author
Unknown
Metasploit Module
Unknown
Reporter
Unknown
Vendors
- canonical,
- fedoraproject,
- libvncserver project,
- opensuse,
- siemens
Products
- fedora 31,
- fedora 32,
- leap 15.1,
- leap 15.2,
- libvncserver,
- simatic itc1500 firmware,
- simatic itc1500 pro firmware,
- simatic itc1900 firmware,
- simatic itc1900 pro firmware,
- simatic itc2200 firmware,
- simatic itc2200 pro firmware,
- ubuntu linux 16.04,
- ubuntu linux 18.04,
- ubuntu linux 19.10,
- ubuntu linux 20.04
References
Advisory
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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