CVE-2024-47659— Linux kernel 安全漏洞
一分钟漏洞结论
影响对象
Linux Linux
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。
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞。攻击者利用该漏洞导致标签错误和未授权的写入。
影响版本矩阵 18
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | 07feee8f812f7327a46186f7604df312c8c81962< d3f56c653c65f170b172d3c23120bc64ada645d8 |
affected |
07feee8f812f7327a46186f7604df312c8c81962< 5b4b304f196c070342e32a4752e1fa2e22fc0671 |
affected | ||
07feee8f812f7327a46186f7604df312c8c81962< a948ec993541db4ef392b555c37a1186f4d61670 |
affected | ||
07feee8f812f7327a46186f7604df312c8c81962< 0aea09e82eafa50a373fc8a4b84c1d4734751e2c |
affected | ||
07feee8f812f7327a46186f7604df312c8c81962< 0776bcf9cb6de46fdd94d10118de1cf9b05f83b9 |
affected | ||
07feee8f812f7327a46186f7604df312c8c81962< 4be9fd15c3c88775bdf6fa37acabe6de85beebff |
affected | ||
07feee8f812f7327a46186f7604df312c8c81962< d3703fa94116fed91f64c7d1c7d284fb4369070f |
affected | ||
07feee8f812f7327a46186f7604df312c8c81962< 2fe209d0ad2e2729f7e22b9b31a86cc3ff0db550 |
affected | ||
| … +10 条更多 | |||
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一、 漏洞 CVE-2024-47659 基础信息
漏洞信息
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Vulnerability Title
smack: tcp: ipv4, fix incorrect labeling
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
smack: tcp: ipv4, fix incorrect labeling
Currently, Smack mirrors the label of incoming tcp/ipv4 connections:
when a label 'foo' connects to a label 'bar' with tcp/ipv4,
'foo' always gets 'foo' in returned ipv4 packets. So,
1) returned packets are incorrectly labeled ('foo' instead of 'bar')
2) 'bar' can write to 'foo' without being authorized to write.
Here is a scenario how to see this:
* Take two machines, let's call them C and S,
with active Smack in the default state
(no settings, no rules, no labeled hosts, only builtin labels)
* At S, add Smack rule 'foo bar w'
(labels 'foo' and 'bar' are instantiated at S at this moment)
* At S, at label 'bar', launch a program
that listens for incoming tcp/ipv4 connections
* From C, at label 'foo', connect to the listener at S.
(label 'foo' is instantiated at C at this moment)
Connection succeedes and works.
* Send some data in both directions.
* Collect network traffic of this connection.
All packets in both directions are labeled with the CIPSO
of the label 'foo'. Hence, label 'bar' writes to 'foo' without
being authorized, and even without ever being known at C.
If anybody cares: exactly the same happens with DCCP.
This behavior 1st manifested in release 2.6.29.4 (see Fixes below)
and it looks unintentional. At least, no explanation was provided.
I changed returned packes label into the 'bar',
to bring it into line with the Smack documentation claims.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
来源: CVE Program / CVE List V5
Vulnerability Type
N/A
来源: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞。攻击者利用该漏洞导致标签错误和未授权的写入。
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
二、漏洞 CVE-2024-47659 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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同批安全公告 · Linux · 2024-10-09 · 共 17 条
| CVE-2024-47668 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-47670 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-47658 | 7.5 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-47667 | 7.3 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-47669 | 7.3 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46870 | Linux kernel 安全漏洞 | |
| CVE-2024-46871 | Linux kernel 安全漏洞 | |
| CVE-2024-47660 | Linux kernel 安全漏洞 | |
| CVE-2024-47662 | Linux kernel 安全漏洞 | |
| CVE-2024-47661 | Linux kernel 安全漏洞 | |
| CVE-2024-47663 | Linux kernel 安全漏洞 | |
| CVE-2024-47664 | Linux kernel 安全漏洞 | |
| CVE-2024-47665 | Linux kernel 安全漏洞 | |
| CVE-2024-47666 | Linux kernel 安全漏洞 | |
| CVE-2024-47671 | Linux kernel 安全漏洞 | |
| CVE-2024-47673 | Linux kernel 安全漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2024-47659
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