PT-2021-15449 · Coding Machine · Gotenberg

Abergmann + 1 · Published 2021-02-26 · Updated 2021-03-09 · CVE-2021-23345

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Name of the Vulnerable Software and Affected Versions github.com/thecodingmachine/gotenberg (affected versions not specified)

Description The issue allows for Server-side Request Forgery (SSRF) via the "/convert/html" endpoint. This occurs when the src attribute of an HTML element, such as an iframe, refers to an internal system file, for example, <iframe src='file:///etc/passwd'>.

Recommendations As a temporary workaround, consider disabling the "/convert/html" endpoint until a patch is available. Restrict access to internal system files to minimize the risk of exploitation. Avoid using the src attribute in HTML elements within the "/convert/html" endpoint to refer to internal system files until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

SSRF

Weakness Enumeration

CWE-918

Related Identifiers

CVE-2021-23345

SNYK-GOLANG-GITHUBCOMTHECODINGMACHINEGOTENBERG-1062043

Affected Products

Gotenberg

References · 5

• 🔥 https://github.com/thecodingmachine/gotenberg/issues/261 · Exploit
• 🔥 https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMTHECODINGMACHINEGOTENBERG-1062043 · Exploit
• https://osv.dev/vulnerability/CVE-2021-23345 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-23345 · Security Note
• https://t.me/cibsecurity/24237 · Telegram Post