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CVE-2024-45308— MySQL & free URL mode allows to hide existing notes in hedgedoc

Quick assessment

Affected
hedgedoc hedgedoc
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.

HedgeDoc是HedgeDoc团队的一个基于Javascript的Markdown文档实时编辑分享平台。 HedgeDoc 1.9.9版本及之前版本存在安全漏洞。攻击者利用该漏洞可以创建具有任意别名的笔记。

CVSS 6.5 · Medium EPSS 0.55% · P44
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I. Basic Information for CVE-2024-45308

Vulnerability Information
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Vulnerability Title
MySQL & free URL mode allows to hide existing notes in hedgedoc
Source: CVE Program / CVE List V5
Vulnerability Description
HedgeDoc is an open source, real-time, collaborative, markdown notes application. When using HedgeDoc 1 with MySQL or MariaDB, it is possible to create notes with an alias matching the ID of existing notes. The affected existing note can then not be accessed anymore and is effectively hidden by the new one. When the freeURL feature is enabled (by setting the `allowFreeURL` config option or the `CMD_ALLOW_FREEURL` environment variable to `true`), any user with the appropriate permissions can create a note with an arbitrary alias, e.g. by accessing it in the browser. When MySQL or MariaDB are used, it is possible to create a new note with an alias that matches the lower-cased ID of a different note. HedgeDoc then always presents the new note to users, as these databases perform case-insensitive matching and the lower-cased alias is found first. This issue only affects HedgeDoc instances that use MySQL or MariaDB. Depending on the permission settings of the HedgeDoc instance, the issue can be exploited only by logged-in users or by all (including non-logged-in) users. The exploit requires knowledge of the ID of the target note. Attackers could use this issue to present a manipulated copy of the original note to the user, e.g. by replacing the links with malicious ones. Attackers can also use this issue to prevent access to the original note, causing a denial of service. No data is lost, as the original content of the affected notes is still present in the database. Users are advised to upgrade to version 1.10.0 which addresses this issue. Users unable to upgrade may disable freeURL mode which prevents the exploitation of this issue. The impact can also be limited by restricting freeURL note creation to trusted, logged-in users by enabling `requireFreeURLAuthentication`/`CMD_REQUIRE_FREEURL_AUTHENTICATION`.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1289
Source: CVE Program / CVE List V5
Vulnerability Title
HedgeDoc 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
HedgeDoc是HedgeDoc团队的一个基于Javascript的Markdown文档实时编辑分享平台。 HedgeDoc 1.9.9版本及之前版本存在安全漏洞。攻击者利用该漏洞可以创建具有任意别名的笔记。
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
hedgedoc hedgedoc < 1.10.0 -

II. Public POCs for CVE-2024-45308

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III. Intelligence Information for CVE-2024-45308

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Patches & Fixes for CVE-2024-45308 (1)

Vendor Advisories for CVE-2024-45308 (1)

IV. Related Vulnerabilities

Same product: hedgedoc
Same vendor: hedgedoc
Same weakness: CWE-1289

V. Comments for CVE-2024-45308

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