CVE-2021-26712
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.
Sangoma Technologies Asterisk是加拿大Sangoma Technologies公司的一套开源电话交换机（PBX）系统软件。该软件支持语音信箱、多方语音会议、交互式语音应答(IVR)等。 Sangoma Asterisk 中存在安全漏洞。该漏洞源于允许未经身份验证的远程攻击者通过重播SRTP数据包提前终止安全调用。以下产品及版本受到影响：Sangoma Asterisk 13.38.1, Sangoma Asterisk 16.16.0, Sangoma Asterisk 17.
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-26712
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Incorrect access controls in res_srtp.c in Sangoma Asterisk 13.38.1, 16.16.0, 17.9.1, and 18.2.0 and Certified Asterisk 16.8-cert5 allow a remote unauthenticated attacker to prematurely terminate secure calls by replaying SRTP packets.
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
Sangoma Technologies Asterisk 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Sangoma Technologies Asterisk是加拿大Sangoma Technologies公司的一套开源电话交换机（PBX）系统软件。该软件支持语音信箱、多方语音会议、交互式语音应答(IVR)等。 Sangoma Asterisk 中存在安全漏洞。该漏洞源于允许未经身份验证的远程攻击者通过重播SRTP数据包提前终止安全调用。以下产品及版本受到影响：Sangoma Asterisk 13.38.1, Sangoma Asterisk 16.16.0, Sangoma Asterisk 17.
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 | - |
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II. Public POCs for CVE-2021-26712
| # | POC Description | Source Link | Shenlong Link |
|---|
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Exploits & Public PoCs for CVE-2021-26712 (1)
Mailing List Discussions for CVE-2021-26712 (1)
Other References for CVE-2021-26712 (2)
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https://issues.asterisk.org/jira/browse/ASTERISK-29260 x_refsource_CONFIRM
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https://downloads.asterisk.org/pub/security/AST-2021-003.html x_refsource_CONFIRM
Same Patch Batch · n/a · 2021-02-18 · 27 CVEs total
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| CVE-2020-28491 | 7.5 HIGH | Denial of Service (DoS) |
| CVE-2020-28496 | 7.5 HIGH | Regular Expression Denial of Service (ReDoS) |
| CVE-2020-28499 | 7.3 HIGH | Prototype Pollution |
| CVE-2021-23340 | 7.1 HIGH | Local File Inclusion |
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| CVE-2020-19513 | FinalWire AIDA64 Engineer 缓冲区错误漏洞 | |
| CVE-2021-27329 | Friendica 代码问题漏洞 | |
| CVE-2021-27335 | KollectApps 代码问题漏洞 |
Showing top 20 of 27 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
V. Comments for CVE-2021-26712
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