Arch Linux update for wordpress



| Updated: 2023-05-07
Risk Medium
Patch available YES
Number of vulnerabilities 9
CVE-ID CVE-2016-10033
CVE-2016-10045
CVE-2017-5487
CVE-2017-5488
CVE-2017-5489
CVE-2017-5490
CVE-2017-5491
CVE-2017-5492
CVE-2017-5493
CWE-ID CWE-94
CWE-284
CWE-79
CWE-352
CWE-264
CWE-330
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Public exploit code for vulnerability #2 is available.
Public exploit code for vulnerability #3 is available.
Vulnerable software
 Arch Linux
Operating systems & Components / Operating system

Vendor Arch Linux

Security Bulletin

This security bulletin contains information about 9 vulnerabilities.

1) Remote code injection

EUVDB-ID: #VU3118

Risk: High

CVSSv4.0: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Amber]

CVE-ID: CVE-2016-10033

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: Yes

Description

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

The vulnerability exists due to insufficient sanitization of user-supplied input passed via specially crafted “From” address to mailSend() function. A remote attacker can use backslashed double quote character (e.g. \") to pass additional commands to original mail command and execute them with privileges of the current web server user.

Successful exploitation of the vulnerability may result in system compromise.


Mitigation

Update the affected package wordpress to version 4.7.1-1.

Vulnerable software versions

Arch Linux: All versions

CPE2.3 External links

https://security.archlinux.org/advisory/ASA-201701-22


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

2) Remote code injection

EUVDB-ID: #VU3119

Risk: High

CVSSv4.0: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Amber]

CVE-ID: CVE-2016-10045

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: Yes

Description

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

The vulnerability exists in PHPMailer due to insufficient sanitization of user-supplied input, when Sender property is not set. A remote attacker can use backslashed double quote character (e.g. \”) to pass additional commands to original mail command and execute them with privileges of the current web server user.

Successful exploitation of the vulnerability may result in system compromise.

Note: this vulnerability exists due to incorrect fix for vulnerability SB2016122601 (CVE-2016-10033)


Mitigation

Update the affected package wordpress to version 4.7.1-1.

Vulnerable software versions

Arch Linux: All versions

CPE2.3 External links

https://security.archlinux.org/advisory/ASA-201701-22


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

3) Information disclosure

EUVDB-ID: #VU4856

Risk: Low

CVSSv4.0: 5.5 [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:P/U:Clear]

CVE-ID: CVE-2017-5487

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: Yes

Description

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

The vulnerability exists due to incorrectly implemented restrictions within REST API ("wp-includes/rest-api/endpoints/class-wp-rest-users-controller.php") when accessing listings of post authors via HTTP request to "wp-json/wp/v2/users" URL. A remote attacker can send a specially crafted HTTP request to vulnerable URL and obtain potentially sensitive data.

Successful exploitation of the vulnerability may allow an attacker to gain access to otherwise restricted sensitive information.

Mitigation

Update the affected package wordpress to version 4.7.1-1.

Vulnerable software versions

Arch Linux: All versions

CPE2.3 External links

https://security.archlinux.org/advisory/ASA-201701-22


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. However, proof of concept for this vulnerability is available.

4) Cross-site scripting (XSS)

EUVDB-ID: #VU4857

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-2017-5488

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

Exploit availability: No

Description

Vulnerability allows a remote attacker to perform Cross-site scripting attacks.

An input validation error exists in "wp-admin/update-core.php" script in WordPress before 4.7.1 when processing the "name" and "version" headers of a plugin. A remote attacker can trick the victim to follow a specially specially crafted link and execute arbitrary HTML and script code in victim's browser in security 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

Update the affected package wordpress to version 4.7.1-1.

Vulnerable software versions

Arch Linux: All versions

CPE2.3 External links

https://security.archlinux.org/advisory/ASA-201701-22


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.

5) Cross-site request forgery

EUVDB-ID: #VU4858

Risk: Medium

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

CVE-ID: CVE-2017-5489

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform CSRF attacks.

The vulnerability exists due to improper validation of the HTTP request origin. A remote attacker can create a specially specially crafted web page, trick the authenticated victim into visiting it, perform cross-site request forgery attack and hijack authentication of unspecified victims.

Successful exploitation of the vulnerability may allow an attacker to hijack authentication.



Mitigation

Update the affected package wordpress to version 4.7.1-1.

Vulnerable software versions

Arch Linux: All versions

CPE2.3 External links

https://security.archlinux.org/advisory/ASA-201701-22


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) Cross-site scripting

EUVDB-ID: #VU4859

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-2017-5490

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

Exploit availability: No

Description

Vulnerability allows a remote authenticated attacker to perform XSS attacks.

The vulnerability is caused by an input validation error in the theme-name fallback functionality in "wp-includes/class-wp-theme.php" script in WordPress before 4.7.1. A remote authenticated attacker can trick the victim to follow a specially specially crafted link and execute arbitrary HTML and script code in victim's browser in security 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

Update the affected package wordpress to version 4.7.1-1.

Vulnerable software versions

Arch Linux: All versions

CPE2.3 External links

https://security.archlinux.org/advisory/ASA-201701-22


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.

7) Spoofing attack

EUVDB-ID: #VU4860

Risk: Low

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

CVE-ID: CVE-2017-5491

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass certain security restriction.

The vulnerability exists due to an error within wp-mail.php script. A remote attacker can bypass imposed posting restrictions using a spoofed mail server with name mail.example.com.

Successful exploitation of the vulnerability may allow an attacker to perform unauthorized postings.

Mitigation

Update the affected package wordpress to version 4.7.1-1.

Vulnerable software versions

Arch Linux: All versions

CPE2.3 External links

https://security.archlinux.org/advisory/ASA-201701-22


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.

8) Cross-site request forgery (CSRF)

EUVDB-ID: #VU4861

Risk: Medium

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

CVE-ID: CVE-2017-5492

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform CSRF attacks.

The vulnerability exists due to improper validation of the HTTP request origin within "wp-admin/includes/class-wp-screen.php" and "wp-admin/widgets.php" scripts. A remote attacker can create a specially specially crafted web page, trick the authenticated victim into visiting it, perform cross-site request forgery attack and hijack the authentication of unspecified victims for requests that perform a widgets-access action.

Successful exploitation of the vulnerability may allow an attacker to bypass authentication.



Mitigation

Update the affected package wordpress to version 4.7.1-1.

Vulnerable software versions

Arch Linux: All versions

CPE2.3 External links

https://security.archlinux.org/advisory/ASA-201701-22


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.

9) Insufficient randomization

EUVDB-ID: #VU4862

Risk: Medium

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

CVE-ID: CVE-2017-5493

CWE-ID: CWE-330 - Use of Insufficiently Random Values

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass certain security restriction.

The vulnerability exists due to an error when choosing random numbers for keys within wp-includes/ms-functions.php script in the Multisite WordPress API. A remote attacker can create a specially crafted site signup or user signup request and bypass intended access restriction.

Successful exploitation of the vulnerability may allow an attacker to gain access to otherwise restricted functionality.

Mitigation

Update the affected package wordpress to version 4.7.1-1.

Vulnerable software versions

Arch Linux: All versions

CPE2.3 External links

https://security.archlinux.org/advisory/ASA-201701-22


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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