Multiple vulnerabilities in TYPO3



Published: 2020-05-15
Risk High
Patch available YES
Number of vulnerabilities 6
CVE-ID CVE-2020-11069
CVE-2020-11067
CVE-2020-11066
CVE-2020-11065
CVE-2020-11064
CVE-2020-11063
CWE-ID CWE-352
CWE-502
CWE-79
CWE-204
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		TYPO3
Web applications / CMS

Vendor TYPO3

Security Bulletin

This security bulletin contains information about 6 vulnerabilities.

1) Cross-site request forgery

EUVDB-ID: #VU27935

Risk: Low

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-11069

CWE-ID: CWE-352 - Cross-Site Request Forgery (CSRF)

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform cross-site request forgery attacks.

The vulnerability exists due to insufficient validation of the HTTP request origin in the backend user interface and install tool. A remote authenticated attacker can trick the victim to visit a specially crafted web page and perform arbitrary actions on behalf of the victim on the vulnerable website.

Mitigation

Install update from vendor's website.

Vulnerable software versions

TYPO3: 9.0.0 - 10.4.1

External links

http://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-pqg8-crx9-g8m4
http://typo3.org/security/advisory/typo3-core-sa-2020-006/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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

2) Deserialization of Untrusted Data

EUVDB-ID: #VU27934

Risk: Medium

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-11067

CWE-ID: CWE-502 - Deserialization of Untrusted Data

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to insecure input validation when processing serialized data within the backend user settings (in $BE_USER->uc). A remote authenticated attacker can pass specially crafted data to the application and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

TYPO3: 9.0.0 - 10.4.1

External links

http://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-2wj9-434x-9hvp
http://typo3.org/security/advisory/typo3-core-sa-2020-005/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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

3) Deserialization of Untrusted Data

EUVDB-ID: #VU27933

Risk: High

CVSSv3.1: 7.6 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-11066

CWE-ID: CWE-502 - Deserialization of Untrusted Data

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to insecure input validation when processing serialized data. A remote attacker can pass specially crafted data to the application and trigger deletion of arbitrary directory in file system or trigger message submission via email using identity of web site.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

TYPO3: 9.0.0 - 10.4.1

External links

http://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-2rxh-h6h9-qrqc
http://typo3.org/security/advisory/typo3-core-sa-2020-004/


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.

4) Cross-site scripting

EUVDB-ID: #VU27932

Risk: Low

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-11065

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 in link tags generated by "typolink" functionality. A remote authenticated 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

TYPO3: 9.5.12 - 10.4.1

External links

http://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-4j77-gg36-9864
http://typo3.org/security/advisory/typo3-core-sa-2020-003/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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

5) Cross-site scripting

EUVDB-ID: #VU27937

Risk: Low

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-11064

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 in HTML "placeholder" attributes. A remote authenticated 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

TYPO3: 9.0.0 - 10.4.1

External links

http://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-43gj-mj2w-wh46
http://typo3.org/security/advisory/typo3-core-sa-2020-002


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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

6) Observable Response Discrepancy

EUVDB-ID: #VU27938

Risk: Low

CVSSv3.1: 3.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-11063

CWE-ID: CWE-204 - Observable Response Discrepancy

Exploit availability: No

Description

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

The vulnerability exists due to the time-based attacks can be used with the password reset functionality for backend users. A remote attacker can mount user enumeration based on email addresses assigned to backend user accounts.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

TYPO3: 10.4.0 - 10.4.1

External links

http://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-347x-877p-hcwx
http://typo3.org/security/advisory/typo3-core-sa-2020-001


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.



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