CVE-2017-8819
Quick assessment
Affected
n/a Tor before 0.2.5.16, 0.2.6 through 0.2.8 before 0.2.8.17, 0.2.9 before 0.2.9.14, 0.3.0 before 0.3.0.13, and 0.3.1 before 0.3.1.9
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Tor（The Onion Router）是第二代洋葱路由（onion routing）的一种实现，主要用于匿名访问互联网。 Tor中存在安全漏洞。攻击者可利用该漏洞绕过缓存重播保护机制。以下产品受到影响：Tor 0.2.5.16之前的版本，0.2.6版本至0.2.8.17之前的0.2.8版本，0.2.9.14之前的0.2.9版本，0.3.0.13之前的0.3.0版本，0.3.1.9之前的0.3.1版本。
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I. Basic Information for CVE-2017-8819
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
In Tor before 0.2.5.16, 0.2.6 through 0.2.8 before 0.2.8.17, 0.2.9 before 0.2.9.14, 0.3.0 before 0.3.0.13, and 0.3.1 before 0.3.1.9, the replay-cache protection mechanism is ineffective for v2 onion services, aka TROVE-2017-009. An attacker can send many INTRODUCE2 cells to trigger this issue.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Tor 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tor（The Onion Router）是第二代洋葱路由（onion routing）的一种实现，主要用于匿名访问互联网。 Tor中存在安全漏洞。攻击者可利用该漏洞绕过缓存重播保护机制。以下产品受到影响：Tor 0.2.5.16之前的版本，0.2.6版本至0.2.8.17之前的0.2.8版本，0.2.9.14之前的0.2.9版本，0.3.0.13之前的0.3.0版本，0.3.1.9之前的0.3.1版本。
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 |
|---|---|---|---|---|
| - | Tor before 0.2.5.16, 0.2.6 through 0.2.8 before 0.2.8.17, 0.2.9 before 0.2.9.14, 0.3.0 before 0.3.0.13, and 0.3.1 before 0.3.1.9 | Tor before 0.2.5.16, 0.2.6 through 0.2.8 before 0.2.8.17, 0.2.9 before 0.2.9.14, 0.3.0 before 0.3.0.13, and 0.3.1 before 0.3.1.9 | - |
|
II. Public POCs for CVE-2017-8819
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2017-8819 (1)
Security Blog Posts for CVE-2017-8819 (1)
Other References for CVE-2017-8819 (1)
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https://bugs.torproject.org/24244 x_refsource_CONFIRM
Same Patch Batch · n/a · 2017-12-03 · 8 CVEs total
| CVE-2017-14516 | SAP Business Objects Financial Consolidation 跨站脚本漏洞 | |
| CVE-2017-8820 | Tor 安全漏洞 | |
| CVE-2017-8821 | Tor 安全漏洞 | |
| CVE-2017-8822 | Tor 安全漏洞 | |
| CVE-2017-8823 | Tor onion service v2 安全漏洞 | |
| CVE-2017-17096 | WordPress Content Cards插件跨站脚本漏洞 | |
| CVE-2017-17099 | Flexense SyncBreeze Enterprise HTTP服务器缓冲区错误漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2017-8819
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