CVE-2021-41767— Private tunnel identifier may be included in the non-private details of active connections
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2021-41767
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View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
Private tunnel identifier may be included in the non-private details of active connections
Source: NVD (National Vulnerability Database)
Vulnerability Description
Apache Guacamole 1.3.0 and older may incorrectly include a private tunnel identifier in the non-private details of some REST responses. This may allow an authenticated user who already has permission to access a particular connection to read from or interact with another user's active use of that same connection.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
信息暴露
Source: NVD (National Vulnerability Database)
Vulnerability Title
Apache Guacamole 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache Guacamole是美国阿帕奇（Apache）基金会的一款无客户端的远程桌面网关。该产品支持VNC、RDP和SSH等协议。 Apache Guacamole 1.3.0存在安全漏洞，该漏洞源于Apache Guacamole 1.3.0和更早版本可能不正确地在一些REST响应的非私有细节中包含私有隧道标识符。这可能允许已经拥有访问特定连接权限的经过身份验证的用户从其他用户对同一连接的积极使用中读取或交互。
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 |
|---|---|---|---|---|
| Apache Software Foundation | Apache Guacamole | unspecified ~ 1.3.0 | - |
II. Public POCs for CVE-2021-41767
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2021-41767
请登录查看更多情报信息。
- https://lists.apache.org/thread/5l31k4jmzdsfz0xt8osrbl878gb3b7rox_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2021-41767
IV. Related Vulnerabilities
Same product: Apache Guacamole
- CVE-2024-35164
Apache Guacamole: Improper input validation of console codes - CVE-2023-43826
Apache Guacamole: Integer overflow in handling of VNC image - CVE-2023-30576
Apache Guacamole: Use-after-free in handling of RDP audio in - CVE-2023-30575
Apache Guacamole: Incorrect calculation of Guacamole protoco - CVE-2021-43999
Improper validation of SAML responses
Same vendor: Apache Software Foundation
- CVE-2026-39816
Apache NiFi: Missing Execute Code Required Permission on Tin - CVE-2026-25199
Apache CloudStack: Proxmox Extension Allows Unauthorized Cro - CVE-2026-25077
Apache CloudStack: Unauthenticated Command Injection in Dire - CVE-2025-69233
Apache CloudStack: Domain/account resources limits not honor - CVE-2025-66467
Apache CloudStack: MinIO policy remains intact on bucket del
Same weakness: CWE-200
- CVE-2026-42333
quarkus-openapi-generator has overly broad path-parameter ma - CVE-2026-8198
Activity Logs, User Activity Tracking, Multisite Activity Lo - CVE-2026-42456
AnythingLLM: Cross-User TTS Audio Disclosure via Chat ID (ID - CVE-2026-41520
Cillium exposes sensitive information included in the cilium - CVE-2026-25199
Apache CloudStack: Proxmox Extension Allows Unauthorized Cro
V. Comments for CVE-2021-41767
No comments yet