目标达成 感谢每一位支持者 — 我们达成了 100% 目标！

目标: 1000 元 · 已筹: 1359 元

100%
请我们喝杯咖啡

CVE-2021-41158— FreeSWITCH 访问控制错误漏洞

一分钟漏洞结论

影响对象
signalwire freeswitch
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。

FreeSWITCH是美国Anthony Minessale个人开发者的研发的一套免费、开源的通信软件。该软件可用于创建音、视频以及短消息类产品和应用。 FreeSWITCH 存在访问控制错误漏洞，该漏洞源于FreeSWITCH版本1.10.6及以下存在SIP摘要泄漏漏洞。攻击者可利用该漏洞对FreeSWITCH进行SIP摘要泄漏攻击，并接收FreeSWITCH服务器上配置的网关的质询响应。

CVSS 5.8 · Medium EPSS 0.83% · P56

可能的 ATT&CK 技术 1 AI

T1110 · Brute Force
获取后续新漏洞提醒 登录后订阅

一、 漏洞 CVE-2021-41158 基础信息

漏洞信息
对漏洞内容有疑问？看看神龙的深度分析是否有帮助！
查看神龙十问 ↗

尽管我们使用了先进的大模型技术，但其输出仍可能包含不准确或过时的信息。神龙努力确保数据的准确性，但请您根据实际情况进行核实和判断。

Vulnerability Title
FreeSWITCH vulnerable to SIP digest leak for configured gateways
来源: CVE Program / CVE List V5
Vulnerability Description
FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation that runs on any commodity hardware. Prior to version 1.10.7, an attacker can perform a SIP digest leak attack against FreeSWITCH and receive the challenge response of a gateway configured on the FreeSWITCH server. This is done by challenging FreeSWITCH's SIP requests with the realm set to that of the gateway, thus forcing FreeSWITCH to respond with the challenge response which is based on the password of that targeted gateway. Abuse of this vulnerability allows attackers to potentially recover gateway passwords by performing a fast offline password cracking attack on the challenge response. The attacker does not require special network privileges, such as the ability to sniff the FreeSWITCH's network traffic, to exploit this issue. Instead, what is required for this attack to work is the ability to cause the victim server to send SIP request messages to the malicious party. Additionally, to exploit this issue, the attacker needs to specify the correct realm which might in some cases be considered secret. However, because many gateways are actually public, this information can easily be retrieved. The vulnerability appears to be due to the code which handles challenges in `sofia_reg.c`, `sofia_reg_handle_sip_r_challenge()` which does not check if the challenge is originating from the actual gateway. The lack of these checks allows arbitrary UACs (and gateways) to challenge any request sent by FreeSWITCH with the realm of the gateway being targeted. This issue is patched in version 10.10.7. Maintainers recommend that one should create an association between a SIP session for each gateway and its realm to make a check be put into place for this association when responding to challenges.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
来源: CVE Program / CVE List V5
Vulnerability Type
信息暴露
来源: CVE Program / CVE List V5
Vulnerability Title
FreeSWITCH 访问控制错误漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
FreeSWITCH是美国Anthony Minessale个人开发者的研发的一套免费、开源的通信软件。该软件可用于创建音、视频以及短消息类产品和应用。 FreeSWITCH 存在访问控制错误漏洞，该漏洞源于FreeSWITCH版本1.10.6及以下存在SIP摘要泄漏漏洞。攻击者可利用该漏洞对FreeSWITCH进行SIP摘要泄漏攻击，并接收FreeSWITCH服务器上配置的网关的质询响应。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD

受影响产品

厂商 产品 影响版本 CPE 订阅
signalwire freeswitch < 1.10.7 -

二、漏洞 CVE-2021-41158 的公开POC

# POC 描述 源链接 神龙链接
AI 生成 POC 高级

未找到公开 POC。

登录以生成 AI POC

三、漏洞 CVE-2021-41158 的情报信息

请登录查看更多情报信息。

CVE-2021-41158 厂商安全公告 (1)

CVE-2021-41158 邮件列表归档 (1)

CVE-2021-41158 其他参考 (1)

IV. Related Vulnerabilities

Same product: freeswitch
Same vendor: signalwire
Same weakness: CWE-200

V. Comments for CVE-2021-41158

暂无评论

发表评论