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CVE-2023-24823— RIOT-OS vulnerable to Packet Type Confusion during IPHC send

Quick assessment

Affected
RIOT-OS RIOT
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.

RIOT RIOT-OS是一套应用于物联网领域的操作系统。 RIOT RIOT-OS 2022.10 之前版本存在安全漏洞，攻击者利用该漏洞可以设备发送精心制作的帧，从而导致 IPv6 扩展标头和 UDP 标头之间的类型混淆，在编码 6LoWPAN IPHC 标头时会发生这种情况，类型混淆表现为数据包缓冲区中的越界写入，溢出可用于破坏其他数据包和分配器元数据， 损坏指针很容易导致拒绝服务。

CVSS 9.8 · Critical EPSS 0.98% · P61
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I. Basic Information for CVE-2023-24823

Vulnerability Information
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Vulnerability Title
RIOT-OS vulnerable to Packet Type Confusion during IPHC send
Source: CVE Program / CVE List V5
Vulnerability Description
RIOT-OS, an operating system that supports Internet of Things devices, contains a network stack with the ability to process 6LoWPAN frames. Prior to version 2022.10, an attacker can send a crafted frame to the device resulting in a type confusion between IPv6 extension headers and a UDP header. This occurs while encoding a 6LoWPAN IPHC header. The type confusion manifests in an out of bounds write in the packet buffer. The overflow can be used to corrupt other packets and the allocator metadata. Corrupting a pointer will easily lead to denial of service. While carefully manipulating the allocator metadata gives an attacker the possibility to write data to arbitrary locations and thus execute arbitrary code. Version 2022.10 fixes this issue. As a workaround, apply the patches manually.
Source: 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:H
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存写
Source: CVE Program / CVE List V5
Vulnerability Title
RIOT RIOT-OS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
RIOT RIOT-OS是一套应用于物联网领域的操作系统。 RIOT RIOT-OS 2022.10 之前版本存在安全漏洞，攻击者利用该漏洞可以设备发送精心制作的帧，从而导致 IPv6 扩展标头和 UDP 标头之间的类型混淆，在编码 6LoWPAN IPHC 标头时会发生这种情况，类型混淆表现为数据包缓冲区中的越界写入，溢出可用于破坏其他数据包和分配器元数据， 损坏指针很容易导致拒绝服务。
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
RIOT-OS RIOT < 2022.10 -

II. Public POCs for CVE-2023-24823

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III. Intelligence Information for CVE-2023-24823

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Patches & Fixes for CVE-2023-24823 (2)

Vendor Advisories for CVE-2023-24823 (1)

Same Patch Batch · RIOT-OS · 2023-04-24 · 6 CVEs total

CVE-2023-24819 9.8 CRITICAL RIOT-OS vulnerable to Buffer Overflow during IPHC receive
CVE-2023-24822 7.5 HIGH RIOT-OS vulnerable to Null Pointer dereference during IPHC encoding
CVE-2023-24821 7.5 HIGH RIOT-OS vulnerable to Integer Underflow during defragmentation
CVE-2023-24820 7.5 HIGH RIOT-OS vulnerable to Integer Underflow during IPHC receive
CVE-2023-24818 7.5 HIGH RIOT-OS vulnerable to null pointer dereference during fragment forwarding

IV. Related Vulnerabilities

Same product: RIOT
Same vendor: RIOT-OS
Same weakness: CWE-787

V. Comments for CVE-2023-24823

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