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Vulnerability Details :

CVE-2022-36436

Summary
Assigner-mitre
Assigner Org ID-8254265b-2729-46b6-b9e3-3dfca2d5bfca
Published At-14 Sep, 2022 | 03:04
Updated At-03 Aug, 2024 | 10:07
Rejected At-
Credits

OSU Open Source Lab VNCAuthProxy through 1.1.1 is affected by an vncap/vnc/protocol.py VNCServerAuthenticator authentication-bypass vulnerability that could allow a malicious actor to gain unauthorized access to a VNC session or to disconnect a legitimate user from a VNC session. A remote attacker with network access to the proxy server could leverage this vulnerability to connect to VNC servers protected by the proxy server without providing any authentication credentials. Exploitation of this issue requires that the proxy server is currently accepting connections for the target VNC server.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:mitre
Assigner Org ID:8254265b-2729-46b6-b9e3-3dfca2d5bfca
Published At:14 Sep, 2022 | 03:04
Updated At:03 Aug, 2024 | 10:07
Rejected At:
▼CVE Numbering Authority (CNA)

OSU Open Source Lab VNCAuthProxy through 1.1.1 is affected by an vncap/vnc/protocol.py VNCServerAuthenticator authentication-bypass vulnerability that could allow a malicious actor to gain unauthorized access to a VNC session or to disconnect a legitimate user from a VNC session. A remote attacker with network access to the proxy server could leverage this vulnerability to connect to VNC servers protected by the proxy server without providing any authentication credentials. Exploitation of this issue requires that the proxy server is currently accepting connections for the target VNC server.

Affected Products
Vendor
n/a
Product
n/a
Versions
Affected
  • n/a
Problem Types
TypeCWE IDDescription
textN/An/a
Type: text
CWE ID: N/A
Description: n/a
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/osuosl/twisted_vncauthproxy/tree/release/1.1.1
x_refsource_MISC
https://pypi.org/project/VNCAuthProxy/
x_refsource_MISC
https://github.com/osuosl/twisted_vncauthproxy/commit/edc149af29242178091b2d6fcd42c3ef0851644b
x_refsource_MISC
https://cert.grnet.gr/en/blog/cve-2022-36436-twisted-vnc-authentication-proxy-authentication-bypass/
x_refsource_MISC
Hyperlink: https://github.com/osuosl/twisted_vncauthproxy/tree/release/1.1.1
Resource:
x_refsource_MISC
Hyperlink: https://pypi.org/project/VNCAuthProxy/
Resource:
x_refsource_MISC
Hyperlink: https://github.com/osuosl/twisted_vncauthproxy/commit/edc149af29242178091b2d6fcd42c3ef0851644b
Resource:
x_refsource_MISC
Hyperlink: https://cert.grnet.gr/en/blog/cve-2022-36436-twisted-vnc-authentication-proxy-authentication-bypass/
Resource:
x_refsource_MISC
▼Authorized Data Publishers (ADP)
1. CISA ADP Vulnrichment
Affected Products
Vendor
osuosl
Product
twisted_vnc_authentication_proxy
CPEs
  • cpe:2.3:a:osuosl:twisted_vnc_authentication_proxy:*:*:*:*:*:*:*:*
Default Status
unknown
Versions
Affected
  • From 0 through 1.1.1 (custom)
Problem Types
TypeCWE IDDescription
CWECWE-287CWE-287 Improper Authentication
Type: CWE
CWE ID: CWE-287
Description: CWE-287 Improper Authentication
Metrics
VersionBase scoreBase severityVector
3.19.8CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Version: 3.1
Base score: 9.8
Base severity: CRITICAL
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
2. CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/osuosl/twisted_vncauthproxy/tree/release/1.1.1
x_refsource_MISC
x_transferred
https://pypi.org/project/VNCAuthProxy/
x_refsource_MISC
x_transferred
https://github.com/osuosl/twisted_vncauthproxy/commit/edc149af29242178091b2d6fcd42c3ef0851644b
x_refsource_MISC
x_transferred
https://cert.grnet.gr/en/blog/cve-2022-36436-twisted-vnc-authentication-proxy-authentication-bypass/
x_refsource_MISC
x_transferred
Hyperlink: https://github.com/osuosl/twisted_vncauthproxy/tree/release/1.1.1
Resource:
x_refsource_MISC
x_transferred
Hyperlink: https://pypi.org/project/VNCAuthProxy/
Resource:
x_refsource_MISC
x_transferred
Hyperlink: https://github.com/osuosl/twisted_vncauthproxy/commit/edc149af29242178091b2d6fcd42c3ef0851644b
Resource:
x_refsource_MISC
x_transferred
Hyperlink: https://cert.grnet.gr/en/blog/cve-2022-36436-twisted-vnc-authentication-proxy-authentication-bypass/
Resource:
x_refsource_MISC
x_transferred
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:cve@mitre.org
Published At:14 Sep, 2022 | 11:15
Updated At:01 Aug, 2024 | 13:42

OSU Open Source Lab VNCAuthProxy through 1.1.1 is affected by an vncap/vnc/protocol.py VNCServerAuthenticator authentication-bypass vulnerability that could allow a malicious actor to gain unauthorized access to a VNC session or to disconnect a legitimate user from a VNC session. A remote attacker with network access to the proxy server could leverage this vulnerability to connect to VNC servers protected by the proxy server without providing any authentication credentials. Exploitation of this issue requires that the proxy server is currently accepting connections for the target VNC server.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Primary3.19.8CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Secondary3.19.8CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Type: Primary
Version: 3.1
Base score: 9.8
Base severity: CRITICAL
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Type: Secondary
Version: 3.1
Base score: 9.8
Base severity: CRITICAL
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CPE Matches
osuosl
osuosl
>>twisted_vnc_authentication_proxy>>Versions before 1.2.0(exclusive)
cpe:2.3:a:osuosl:twisted_vnc_authentication_proxy:*:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-287Primarynvd@nist.gov
CWE-287Secondary134c704f-9b21-4f2e-91b3-4a467353bcc0
CWE ID: CWE-287
Type: Primary
Source: nvd@nist.gov
CWE ID: CWE-287
Type: Secondary
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://cert.grnet.gr/en/blog/cve-2022-36436-twisted-vnc-authentication-proxy-authentication-bypass/cve@mitre.org
Exploit
Patch
https://github.com/osuosl/twisted_vncauthproxy/commit/edc149af29242178091b2d6fcd42c3ef0851644bcve@mitre.org
Patch
https://github.com/osuosl/twisted_vncauthproxy/tree/release/1.1.1cve@mitre.org
Release Notes
https://pypi.org/project/VNCAuthProxy/cve@mitre.org
Product
Hyperlink: https://cert.grnet.gr/en/blog/cve-2022-36436-twisted-vnc-authentication-proxy-authentication-bypass/
Source: cve@mitre.org
Resource:
Exploit
Patch
Hyperlink: https://github.com/osuosl/twisted_vncauthproxy/commit/edc149af29242178091b2d6fcd42c3ef0851644b
Source: cve@mitre.org
Resource:
Patch
Hyperlink: https://github.com/osuosl/twisted_vncauthproxy/tree/release/1.1.1
Source: cve@mitre.org
Resource:
Release Notes
Hyperlink: https://pypi.org/project/VNCAuthProxy/
Source: cve@mitre.org
Resource:
Product

Change History

0
Information is not available yet

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