Multiple vulnerabilities in TYPO3

1) Cross-site scripting in third party library mso/idna-convert

EUVDB-ID: #VU195

Risk: High

CVSSv3.1: 5.9 [AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N/E:F/RL:O/RC:C]

CVE-ID: N/A

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

Exploit availability: No

Description

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

The vulnerability exists in TYPO3 CMS. TYPO3 ships example code from mso/idna-convert library in the vendor folder, which is vulnerable to Cross-Site Scripting.

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 the latest versions (7.6.10, 8.2.1).

Vulnerable software versions

TYPO3: 7.6-snapshot-20160223 - 8.2.0

External links

http://typo3.org/teams/security/security-bulletins/typo3-core/typo3-core-sa-2016-020/

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. However, a fully functional exploit for this vulnerability is available.

2) Environment variable injection in TYPO3

EUVDB-ID: #VU194

Risk: High

CVSSv3.1: 7.4 [AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-5385

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to redirect an application's outbound HTTP traffic.

The vulnerability exists in TYPO3 CMS. A remote attacker can redirect an application's outbound HTTP traffic to an arbitrary proxy server via a crafted Proxy header in an HTTP request.

Successful exploitation of this vulnerability may result in XSS attack and data injection.

Mitigation

Install the latest version 8.2.1.

Vulnerable software versions

TYPO3: 8.0.0 - 8.2.0

Oracle Linux: 7

External links

http://typo3.org/teams/security/security-bulletins/typo3-core/typo3-core-sa-2016-019/
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html

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) Cross-site scripting vulnerability in typolinks

EUVDB-ID: #VU184

Risk: High

CVSSv3.1: 5.6 [AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: N/A

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

Exploit availability: No

Description

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

The vulnerability exists in all link fields within the TYPO3 installation. A remote attacker can insert data commands by using the url scheme "data:" and conduct cross-site scripting attacks.

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 the latest versions (6.2.26, 7.6.10, 8.2.1).

Vulnerable software versions

TYPO3: 6.2.0 - 8.2.0

External links

http://typo3.org/teams/security/security-bulletins/typo3-core/typo3-core-sa-2016-018/

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.

4) Insecure unserialize in TYPO3 Import/Export

EUVDB-ID: #VU182

Risk: High

CVSSv3.1: 5.5 [AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote attacker to modify data on the target system.

The vulnerability exists in TYPO3. A remote authenticated user with a valid backend account can modify data on the target system by exploiting a deserialization flaw in the Import/Export component.

Successful exploitation of this vulnerability may result in modification of system information.

Mitigation

Install the latest versions (6.2.26, 7.6.10, 8.2.1).

Vulnerable software versions

TYPO3: 6.2.0 - 8.2.0

External links

http://typo3.org/teams/security/security-bulletins/typo3-core/typo3-core-sa-2016-015/

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) Information disclosure in TYPO3 backend

EUVDB-ID: #VU181

Risk: Medium

CVSSv3.1: 4.6 [AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote attacker to receive valid backend usernames.

The vulnerability exists in the TYPO3 backend module. A remote user can receive valid backend usernames by guessing the file path to the cache files.

Successful exploitation of this vulnerability may result in disclosure of system information.

Mitigation

Install the latest versions (6.2.26, 7.6.10, 8.2.1).

Vulnerable software versions

TYPO3: 6.2.0 - 8.2.0

External links

http://typo3.org/teams/security/security-bulletins/typo3-core/typo3-core-sa-2016-017/

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.

6) SQL injection in TYPO3 frontend login

EUVDB-ID: #VU180

Risk: Medium

CVSSv3.1: 5.6 [AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Exploit availability: No

Description

The vulnerability allows a remote attacker to inject SQL commands.

The vulnerability exists due to improper validation of user-supplied input. A remote authenticated user can execute SQL commands on the underlying database by supplying a specially crafted parameter value.

Successful exploitation of this vulnerability may result in SQL commands execution.

Mitigation

Install the latest versions (6.2.26, 7.6.10, 8.2.1).

Vulnerable software versions

TYPO3: 6.2.0 - 7.6.9

External links

http://typo3.org/teams/security/security-bulletins/typo3-core/typo3-core-sa-2016-016/

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.

7) Cross-site scripting in TYPO3 backend

EUVDB-ID: #VU179

Risk: High

CVSSv3.1: 5.6 [AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: N/A

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

Exploit availability: No

Description

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

The vulnerability exists due to improper filtering HTML code from user-supplied input before displaying the input. A remote user can cause arbitrary scripting code to be executed by the target user's browser. The code will originate from the site running the TYPO3 software. As a result, the code will be able to access the target user's cookies, associated with the site, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.

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 the latest versions (6.2.26, 7.6.10, 8.2.1).

Vulnerable software versions

TYPO3: 6.2.0 - 8.2.0

External links

http://typo3.org/teams/security/security-bulletins/typo3-core/typo3-core-sa-2016-014/

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.