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CVE-2023-39916— Possible path traversal when storing RRDP responses

Quick assessment

Affected
NLnet Labs Routinator
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.

NLnet Labs Routinator是荷兰NLnet Labs团队的一款使用Rust语言编写的RPKI（资源公钥基础设施）验证器。 NLnet Labs Routinator 0.12.1及之前版本存在安全漏洞，该漏洞源于存在路径遍历漏洞，允许用户存储RRDP请求收到的响应内容。

CVSS 9.3 · Critical EPSS 0.64% · P49

Possible ATT&CK Techniques 1 AI

T1083 · File and Directory Discovery
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I. Basic Information for CVE-2023-39916

Vulnerability Information
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Vulnerability Title
Possible path traversal when storing RRDP responses
Source: CVE Program / CVE List V5
Vulnerability Description
NLnet Labs’ Routinator 0.9.0 up to and including 0.12.1 as well as 0.14.0 up to and including 0.14.2 contains a possible path traversal vulnerability in the optional, off-by-default keep-rrdp-responses feature that allows users to store the content of responses received for RRDP requests. The location of these stored responses is constructed from the URL of the request. Due to insufficient sanitation of the URL, it is possible for an attacker to craft a URL that results in the response being stored outside of the directory specified for it.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
路径遍历：’…/…//’
Source: CVE Program / CVE List V5
Vulnerability Title
NLnet Labs Routinator 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
NLnet Labs Routinator是荷兰NLnet Labs团队的一款使用Rust语言编写的RPKI（资源公钥基础设施）验证器。 NLnet Labs Routinator 0.12.1及之前版本存在安全漏洞，该漏洞源于存在路径遍历漏洞，允许用户存储RRDP请求收到的响应内容。
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
NLnet Labs Routinator 0.9.0 ~ 0.12.2 -

II. Public POCs for CVE-2023-39916

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III. Intelligence Information for CVE-2023-39916

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Other References for CVE-2023-39916 (1)

Same Patch Batch · NLnet Labs · 2023-09-13 · 3 CVEs total

CVE-2023-39914 7.5 HIGH BER/CER/DER decoder panics on invalid input
CVE-2023-39915 7.5 HIGH Crashes on parsing certain invalid RPKI objects

IV. Related Vulnerabilities

Same product: Routinator
Same vendor: NLnet Labs
Same weakness: CWE-35

V. Comments for CVE-2023-39916

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