// For flags

CVE-2021-23772

Arbitrary File Write

Severity Score

8.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

2
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

This affects all versions of package github.com/kataras/iris; all versions of package github.com/kataras/iris/v12. The unsafe handling of file names during upload using UploadFormFiles method may enable attackers to write to arbitrary locations outside the designated target folder.

Esto afecta a todas las versiones del paquete github.com/kataras/iris; todas las versiones del paquete github.com/kataras/iris/v12. Un manejo no seguro de los nombres de archivo durante la carga usando el método UploadFormFiles puede permitir a atacantes escribir en ubicaciones arbitrarias fuera de la carpeta de destino designada

*Credits: Snyk Security Team
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-01-08 CVE Reserved
  • 2021-12-24 CVE Published
  • 2024-03-17 EPSS Updated
  • 2024-09-16 CVE Updated
  • 2024-09-16 First Exploit
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-59: Improper Link Resolution Before File Access ('Link Following')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Iris-go
Search vendor "Iris-go"
 Iris
Search vendor "Iris-go" for product "Iris"
 <= 12.1.8
Search vendor "Iris-go" for product "Iris" and version " <= 12.1.8"
go
Affected
in Golang
Search vendor "Golang"
 Go
Search vendor "Golang" for product "Go"
 < 1.7.5
Search vendor "Golang" for product "Go" and version " < 1.7.5"
-
Safe
Iris-go
Search vendor "Iris-go"
 Iris
Search vendor "Iris-go" for product "Iris"
 12.2.0
Search vendor "Iris-go" for product "Iris" and version "12.2.0"
alpha, go
Affected
in Golang
Search vendor "Golang"
 Go
Search vendor "Golang" for product "Go"
 < 1.7.5
Search vendor "Golang" for product "Go" and version " < 1.7.5"
-
Safe
Iris-go
Search vendor "Iris-go"
 Iris
Search vendor "Iris-go" for product "Iris"
 12.2.0
Search vendor "Iris-go" for product "Iris" and version "12.2.0"
alpha2, go
Affected
in Golang
Search vendor "Golang"
 Go
Search vendor "Golang" for product "Go"
 < 1.7.5
Search vendor "Golang" for product "Go" and version " < 1.7.5"
-
Safe
Iris-go
Search vendor "Iris-go"
 Iris
Search vendor "Iris-go" for product "Iris"
 12.2.0
Search vendor "Iris-go" for product "Iris" and version "12.2.0"
alpha3, go
Affected
in Golang
Search vendor "Golang"
 Go
Search vendor "Golang" for product "Go"
 < 1.7.5
Search vendor "Golang" for product "Go" and version " < 1.7.5"
-
Safe
Iris-go
Search vendor "Iris-go"
 Iris
Search vendor "Iris-go" for product "Iris"
 12.2.0
Search vendor "Iris-go" for product "Iris" and version "12.2.0"
alpha4, go
Affected
in Golang
Search vendor "Golang"
 Go
Search vendor "Golang" for product "Go"
 < 1.7.5
Search vendor "Golang" for product "Go" and version " < 1.7.5"
-
Safe
Iris-go
Search vendor "Iris-go"
 Iris
Search vendor "Iris-go" for product "Iris"
 12.2.0
Search vendor "Iris-go" for product "Iris" and version "12.2.0"
alpha5, go
Affected
in Golang
Search vendor "Golang"
 Go
Search vendor "Golang" for product "Go"
 < 1.7.5
Search vendor "Golang" for product "Go" and version " < 1.7.5"
-
Safe