CVE-2021-3902
Dompdf SSRF and Deserialization Vulnerability
Description
An improper restriction of external entities (XXE) vulnerability in dompdf/dompdf's SVG parser allows for Server-Side Request Forgery (SSRF) and deserialization attacks. This issue affects all versions prior to 2.0.0. The vulnerability can be exploited even if the isRemoteEnabled option is set to false. It allows attackers to perform SSRF, disclose internal image files, and cause PHAR deserialization attacks.
INFO
Published Date :
Nov. 15, 2024, 11:15 a.m.
Last Modified :
Nov. 19, 2024, 5:12 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
3.9
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-3902.
| URL | Resource |
|---|---|
| https://github.com/dompdf/dompdf/commit/f56bc8e40be6c0ae0825e6c7396f4db80620b799 | Patch |
| https://huntr.com/bounties/a6071c07-806f-429a-8656-a4742e4191b1 | Exploit Issue Tracking Patch Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-3902 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-3902 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Nov. 19, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://github.com/dompdf/dompdf/commit/f56bc8e40be6c0ae0825e6c7396f4db80620b799 No Types Assigned https://github.com/dompdf/dompdf/commit/f56bc8e40be6c0ae0825e6c7396f4db80620b799 Patch Changed Reference Type https://huntr.com/bounties/a6071c07-806f-429a-8656-a4742e4191b1 No Types Assigned https://huntr.com/bounties/a6071c07-806f-429a-8656-a4742e4191b1 Exploit, Issue Tracking, Patch, Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:dompdf_project:dompdf:*:*:*:*:*:*:*:* versions up to (excluding) 2.0.0 -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Nov. 18, 2024
Action Type Old Value New Value Added CVSS V3.1 CISA-ADP AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H -
CVE Received by [email protected]
Nov. 15, 2024
Action Type Old Value New Value Added Description An improper restriction of external entities (XXE) vulnerability in dompdf/dompdf's SVG parser allows for Server-Side Request Forgery (SSRF) and deserialization attacks. This issue affects all versions prior to 2.0.0. The vulnerability can be exploited even if the isRemoteEnabled option is set to false. It allows attackers to perform SSRF, disclose internal image files, and cause PHAR deserialization attacks. Added Reference huntr.dev https://huntr.com/bounties/a6071c07-806f-429a-8656-a4742e4191b1 [No types assigned] Added Reference huntr.dev https://github.com/dompdf/dompdf/commit/f56bc8e40be6c0ae0825e6c7396f4db80620b799 [No types assigned] Added CWE huntr.dev CWE-611 Added CVSS V3 huntr.dev AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-3902 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-3902
weaknesses.