CVE-2020-8133
Quick assessment
Affected
n/a Nextcloud Server
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.
Nextcloud是德国Nextcloud公司的一套开源的自托管文件同步和共享的通信应用平台。 Nextcloud Server 19.0.1版本存在数据伪造问题漏洞，该漏洞源于加密块的密码短语生成错误，攻击者可利用该漏洞可以覆盖文件中的块。
Possible ATT&CK Techniques 1 AI
T1489 · Service Stop
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I. Basic Information for CVE-2020-8133
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A wrong generation of the passphrase for the encrypted block in Nextcloud Server 19.0.1 allowed an attacker to overwrite blocks in a file.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
违背安全设计原则
Source: CVE Program / CVE List V5
Vulnerability Title
Nextcloud 数据伪造问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Nextcloud是德国Nextcloud公司的一套开源的自托管文件同步和共享的通信应用平台。 Nextcloud Server 19.0.1版本存在数据伪造问题漏洞，该漏洞源于加密块的密码短语生成错误，攻击者可利用该漏洞可以覆盖文件中的块。
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 |
|---|---|---|---|---|
| - | Nextcloud Server | 19.0.2 | - |
|
II. Public POCs for CVE-2020-8133
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2020-8133 (2)
-
https://nextcloud.com/security/advisory/?id=NC-SA-2020-038 x_refsource_MISC
-
https://hackerone.com/reports/661051%2C x_refsource_MISC
Same Patch Batch · n/a · 2020-11-09 · 20 CVEs total
| CVE-2020-23138 | Microweber 代码问题漏洞 | |
| CVE-2020-28349 | ChirpStack Network Server 输入验证错误漏洞 | |
| CVE-2020-28351 | Mitel ShoreTel 跨站脚本漏洞 | |
| CVE-2020-24353 | Pega Platform 跨站脚本漏洞 | |
| CVE-2020-8276 | Brave Desktop Privacy-preserving analytics system 安全漏洞 | |
| CVE-2020-8268 | json8-merge-patch 输入验证错误漏洞 | |
| CVE-2020-8150 | Nextcloud 加密问题漏洞 | |
| CVE-2020-9300 | Netflix Dispatch 安全漏洞 | |
| CVE-2020-9299 | Netflix Dispatch 跨站脚本漏洞 | |
| CVE-2020-23136 | Microweber 代码问题漏洞 | |
| CVE-2020-28373 | 多款NETGEAR设备缓冲区错误漏洞 | |
| CVE-2020-23139 | Microweber 授权问题漏洞 | |
| CVE-2020-23140 | Microweber 代码问题漏洞 | |
| CVE-2020-26542 | Percona Server 授权问题漏洞 | |
| CVE-2020-27982 | IceWarp Mail Server 跨站脚本漏洞 | |
| CVE-2020-28364 | Locust 跨站脚本漏洞 | |
| CVE-2020-27977 | Capasystems CapaSystems CapaInstaller 安全漏洞 | |
| CVE-2020-28371 | ReadyTalk Avian 输入验证错误漏洞 | |
| CVE-2020-26168 | Hazelcast 授权问题漏洞 |
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V. Comments for CVE-2020-8133
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