Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

New rule: body_cve_2023_5631.yml #881

Merged
merged 4 commits into from
Jan 30, 2024
Merged

New rule: body_cve_2023_5631.yml #881

Changes from all commits
Commits
Show all changes
4 commits
Select commit Hold shift + click to select a range
42a3972
New rule: body_cve_2023_5631.yml
aidenmitchell Oct 25, 2023
9123fec
Auto add rule ID
Oct 25, 2023
d0de054
Merge branch 'main' into patch-60
morriscode Oct 26, 2023
c0e0f3c
Merge branch 'main' into patch-60
aidenmitchell Jan 30, 2024
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
24 changes: 24 additions & 0 deletions detection-rules/body_cve_2023_5631.yml
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,24 @@
name: "Body: CVE-2023-5631 - Roundcube Webmail XSS via crafted SVG"
description: "Body HTML contains an exploit for CVE-2023-5631, a vulnerability in Roundcube Webmail that allows stored XSS via an HTML e-mail message with a crafted SVG document."
references:
- "https://www.welivesecurity.com/en/eset-research/winter-vivern-exploits-zero-day-vulnerability-roundcube-webmail-servers/"
- "https://nvd.nist.gov/vuln/detail/CVE-2023-5631"
type: "rule"
severity: "critical"
source: |
type.inbound
and length(attachments) == 0
and strings.ilike(body.html.raw, '*use href="data:image/svg+xml;base64,PHN2Zy*#*')
and not profile.by_sender().solicited
attack_types:
- "Malware/Ransomware"
tactics_and_techniques:
- "Evasion"
- "Exploit"
- "HTML smuggling"
- "Scripting"
detection_methods:
- "Content analysis"
- "HTML analysis"
- "Sender analysis"
id: "8405d61b-4330-534e-b64c-f98ee15d8767"
Loading