CVE-2020-12443
Quick assessment
Affected
n/a n/a
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.
BigBlueButton是BigBlueButton社区的一套开源的Web会议系统。 BigBlueButton 2.2.6之前版本中存在安全漏洞。远程攻击者可借助‘presfilename’参数利用该漏洞获取管理员权限。
Possible ATT&CK Techniques 3 AI
T1083 · File and Directory Discovery T1528 · Steal Application Access Token T1135 · Network Share Discovery
Get alerts for future matching vulnerabilities
Log in to subscribe
I. Basic Information for CVE-2020-12443
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗
Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
BigBlueButton before 2.2.6 allows remote attackers to read arbitrary files because the presfilename (lowercase) value can be a .pdf filename while the presFilename (mixed case) value has a ../ sequence. This can be leveraged for privilege escalation via a directory traversal to bigbluebutton.properties. NOTE: this issue exists because of an ineffective mitigation to CVE-2020-12112 in which there was an attempted fix within an NGINX configuration file, without considering that the relevant part of NGINX is case-insensitive.
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
BigBlueButton 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
BigBlueButton是BigBlueButton社区的一套开源的Web会议系统。 BigBlueButton 2.2.6之前版本中存在安全漏洞。远程攻击者可借助‘presfilename’参数利用该漏洞获取管理员权限。
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 |
|---|---|---|---|---|
| - | n/a | n/a | - |
|
II. Public POCs for CVE-2020-12443
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2020-12443
请登录查看更多情报信息。
Patches & Fixes for CVE-2020-12443 (1)
Other References for CVE-2020-12443 (1)
-
https://github.com/mclab-hbrs/BBB-POC x_refsource_MISC
Same Patch Batch · n/a · 2020-04-29 · 49 CVEs total
| CVE-2020-11446 | 多款ESET产品安全漏洞 | |
| CVE-2017-18853 | 多款NETGEAR产品信息泄露漏洞 | |
| CVE-2020-12252 | Gigamon GigaVUE 代码问题漏洞 | |
| CVE-2019-16652 | Genius Bytes Genius Server BPM组件代码注入漏洞 | |
| CVE-2020-12246 | Beeline Smart Box 操作系统命令注入漏洞 | |
| CVE-2020-11884 | Linux kernel 竞争条件问题漏洞 | |
| CVE-2019-20792 | OpenSC 资源管理错误漏洞 | |
| CVE-2020-12447 | ONKYO Onkyo TX-NR585 路径遍历漏洞 | |
| CVE-2019-7634 | SUAP 跨站脚本漏洞 | |
| CVE-2017-18855 | NETGEAR WNR854T 注入漏洞 | |
| CVE-2017-18854 | NETGEAR ReadyNAS OS 注入漏洞 | |
| CVE-2020-10797 | pfSense 跨站脚本漏洞 | |
| CVE-2018-21232 | re2c 安全漏洞 | |
| CVE-2017-18860 | 多款NETGEAR产品注入漏洞 | |
| CVE-2017-18856 | NETGEAR ReadyNAS OS 注入漏洞 | |
| CVE-2020-11674 | Cerner medico 输入验证错误漏洞 | |
| CVE-2020-11675 | Cerner medico 缓冲区错误漏洞 | |
| CVE-2020-11676 | Cerner medico 缓冲区错误漏洞 | |
| CVE-2020-12446 | G.SKILL Trident Z Lighting Control 安全漏洞 | |
| CVE-2020-11677 | Cerner medico 缓冲区错误漏洞 |
Showing top 20 of 49 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
V. Comments for CVE-2020-12443
No comments yet