CVE-2019-8268
Quick assessment
Affected
Kaspersky Lab UltraVNC
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
UltraVNC是一款用于Windows平台的开源远程终端控制软件。 UltraVNC 1206版本中的VNC客户端代码存在安全漏洞，该漏洞源于程序错误地使用了‘ClientConnection::ReadString’函数。攻击者可利用该漏洞执行代码。
Possible ATT&CK Techniques 1 AI
T1210 · Exploitation of Remote Services
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I. Basic Information for CVE-2019-8268
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
UltraVNC revision 1206 has multiple off-by-one vulnerabilities in VNC client code connected with improper usage of ClientConnection::ReadString function, which can potentially result code execution. This attack appears to be exploitable via network connectivity. These vulnerabilities have been fixed in revision 1207.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
Off-by-one错误
Source: CVE Program / CVE List V5
Vulnerability Title
UltraVNC 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
UltraVNC是一款用于Windows平台的开源远程终端控制软件。 UltraVNC 1206版本中的VNC客户端代码存在安全漏洞，该漏洞源于程序错误地使用了‘ClientConnection::ReadString’函数。攻击者可利用该漏洞执行代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Kaspersky Lab | UltraVNC | 1.2.2.3 | - |
|
II. Public POCs for CVE-2019-8268
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2019-8268 (2)
-
https://cert-portal.siemens.com/productcert/pdf/ssa-927095.pdf x_refsource_CONFIRM
-
https://www.us-cert.gov/ics/advisories/icsa-20-161-06 x_refsource_MISC
Other References for CVE-2019-8268 (1)
Same Patch Batch · Kaspersky Lab · 2019-03-09 · 15 CVEs total
| CVE-2019-8264 | UltraVNC 缓冲区错误漏洞 | |
| CVE-2019-8265 | UltraVNC 缓冲区错误漏洞 | |
| CVE-2019-8266 | UltraVNC 缓冲区错误漏洞 | |
| CVE-2019-8267 | UltraVNC 缓冲区错误漏洞 | |
| CVE-2019-8269 | UltraVNC 缓冲区错误漏洞 | |
| CVE-2019-8270 | UltraVNC 缓冲区错误漏洞 | |
| CVE-2019-8271 | UltraVNC 缓冲区错误漏洞 | |
| CVE-2019-8272 | UltraVNC 安全漏洞 | |
| CVE-2019-8273 | UltraVNC 缓冲区错误漏洞 | |
| CVE-2019-8274 | UltraVNC 缓冲区错误漏洞 | |
| CVE-2019-8275 | UltraVNC 安全漏洞 | |
| CVE-2019-8276 | UltraVNC 缓冲区错误漏洞 | |
| CVE-2019-8277 | UltraVNC 资源管理错误漏洞 | |
| CVE-2019-8280 | UltraVNC 缓冲区错误漏洞 |
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V. Comments for CVE-2019-8268
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