CVE-2021-23772 : This affects all versions of package github.com/kataras/iris; all versions of pa

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.

Published 2021-12-24 12:15:08

Updated 2022-01-04 20:11:13

Source Snyk

View at NVD, CVE.org

Products affected by CVE-2021-23772

Iris-go » Iris » For GO
Versions up to, including, (<=) 12.1.8
cpe:2.3:a:iris-go:iris:*:*:*:*:*:go:*:*
Matching versions
When used together with: Golang » GO
Iris-go » Iris » Version: 12.2.0 Update Alpha For GO
cpe:2.3:a:iris-go:iris:12.2.0:alpha:*:*:*:go:*:*
Matching versions
When used together with: Golang » GO
Iris-go » Iris » Version: 12.2.0 Update Alpha2 For GO
cpe:2.3:a:iris-go:iris:12.2.0:alpha2:*:*:*:go:*:*
Matching versions
When used together with: Golang » GO
Iris-go » Iris » Version: 12.2.0 Update Alpha3 For GO
cpe:2.3:a:iris-go:iris:12.2.0:alpha3:*:*:*:go:*:*
Matching versions
When used together with: Golang » GO
Iris-go » Iris » Version: 12.2.0 Update Alpha4 For GO
cpe:2.3:a:iris-go:iris:12.2.0:alpha4:*:*:*:go:*:*
Matching versions
When used together with: Golang » GO
Iris-go » Iris » Version: 12.2.0 Update Alpha5 For GO
cpe:2.3:a:iris-go:iris:12.2.0:alpha5:*:*:*:go:*:*
Matching versions
When used together with: Golang » GO

Exploit prediction scoring system (EPSS) score for CVE-2021-23772

EPSS FAQ

0.33%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 72 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-23772

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
6.8	MEDIUM	AV:N/AC:M/Au:N/C:P/I:P/A:P	8.6	6.4	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
8.8	HIGH	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	2.8	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High
7.5	HIGH	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H	1.6	5.9	Snyk
Attack Vector: Network Attack Complexity: High Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2021-23772

CWE-59 Improper Link Resolution Before File Access ('Link Following')

The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-23772

https://github.com/kataras/iris/commit/e213dba0d32ff66653e0ef124bc5088817264b08

security fix · kataras/iris@e213dba · GitHub
Patch;Third Party Advisory
https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMKATARASIRIS-2325169

Arbitrary File Write in github.com/kataras/iris | CVE-2021-23772 | Snyk
Exploit;Patch;Third Party Advisory
https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMKATARASIRISV12-2325170

Arbitrary File Write in github.com/kataras/iris/v12 | CVE-2021-23772 | Snyk
Exploit;Patch;Third Party Advisory

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Vulnerability Details : CVE-2021-23772

Products affected by CVE-2021-23772

Exploit prediction scoring system (EPSS) score for CVE-2021-23772

CVSS scores for CVE-2021-23772

CWE ids for CVE-2021-23772

References for CVE-2021-23772