Multiple vulnerabilities in Argo CD

1) Cross-site scripting

EUVDB-ID: #VU51532

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-26924

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Argo CD: 1.7.0 - 1.8.3

CPE2.3

• cpe:2.3:a:argo:argo-cd:1.7.11:*:*:*:*:kubernetes:*:*
• cpe:2.3:a:argo:argo-cd:1.8.3:*:*:*:*:kubernetes:*:*

External links

https://github.com/argoproj/argo-cd/compare/v1.8.3...v1.8.4
https://github.com/argoproj/argo-cd/security/advisories/GHSA-pg99-h5gc-446r

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Information disclosure

EUVDB-ID: #VU51533

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-26923

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application in "/api/version" endpoint. A remote attacker can gain unauthorized access to sensitive information on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Argo CD: 1.7.0 - 1.8.3

CPE2.3

External links

https://github.com/argoproj/argo-cd/compare/v1.8.3...v1.8.4
https://github.com/argoproj/argo-cd/security/advisories/GHSA-pfgj-mh5m-2p48

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Insufficient Session Expiration

EUVDB-ID: #VU51534

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-26921

CWE-ID: CWE-613 - Insufficient Session Expiration

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to insufficient session expiration issue in util/session/sessionmanager.go. A remote attacker can obtain or guess session token and gain unauthorized access to session that belongs to another user.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Argo CD: 1.7.0 - 1.8.3

CPE2.3

External links

https://github.com/argoproj/argo-cd/commit/f5b0db240b4e3abf18e97f6fd99096b4f9e94dc5
https://github.com/argoproj/argo-cd/compare/v1.8.3...v1.8.4
https://github.com/argoproj/argo-cd/security/advisories/GHSA-9h6w-j7w4-jr52

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.