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[email protected]CVE-2019-8274

HistoryMar 08, 2019 - 11:29 p.m.

CVE-2019-8274

2019-03-0823:29:00

CWE-787

[email protected]

web.nvd.nist.gov

cve-2019-8274

ultravnc

heap buffer overflow

vnc server

file transfer

code execution

network exploit

vulnerability fix

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

9.7 High

AI Score

Confidence

High

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

0.022 Low

EPSS

Percentile

89.5%

JSON

UltraVNC revision 1211 has a heap buffer overflow vulnerability in VNC server code inside file transfer offer handler, which can potentially in result code execution. This attack appears to be exploitable via network connectivity. This vulnerability has been fixed in revision 1212.

CPENameOperatorVersion
uvnc:ultravncuvnc ultravnclt1.2.2.3
siemens:sinumerik_pcu_base_win7_software\/ipcsiemens sinumerik pcu base win7 software\/ipcle12.01
siemens:sinumerik_pcu_base_win10_software\/ipcsiemens sinumerik pcu base win10 software\/ipclt14.00
siemens:sinumerik_access_mymachine\/p2psiemens sinumerik access mymachine\/p2plt4.8

CPE	Name	Operator	Version
uvnc:ultravnc	uvnc ultravnc	lt	1.2.2.3
siemens:sinumerik_pcu_base_win7_software\/ipc	siemens sinumerik pcu base win7 software\/ipc	le	12.01
siemens:sinumerik_pcu_base_win10_software\/ipc	siemens sinumerik pcu base win10 software\/ipc	lt	14.00
siemens:sinumerik_access_mymachine\/p2p	siemens sinumerik access mymachine\/p2p	lt	4.8

References

cert-portal.siemens.com/productcert/pdf/ssa-927095.pdf

ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-021-ultravnc-heap-based-buffer-overflow/

www.us-cert.gov/ics/advisories/icsa-20-161-06

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

9.7 High

AI Score

Confidence

High

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

0.022 Low

EPSS

Percentile

89.5%

JSON

Related for CVE-2019-8274

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