Multiple vulnerabilities in SPIP



Risk Medium
Patch available YES
Number of vulnerabilities 4
CVE-ID CVE-2019-16394
CVE-2019-16393
CVE-2019-16392
CVE-2019-16391
CWE-ID CWE-200
CWE-113
CWE-79
CWE-284
Exploitation vector Network
Public exploit Public exploit code for vulnerability #4 is available.
Vulnerable software
 SPIP
Web applications / CMS

Vendor spip.net

Security Bulletin

This security bulletin contains information about 4 vulnerabilities.

1) Information disclosure

EUVDB-ID: #VU21413

Risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-16394

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

Exploit availability: No

Description

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

The vulnerability exists due to SPIP returns different responses for existing and non-existing email addresses in an error messages from the password-reminder page. A remote attacker can brute-force the password reminder functionality and exfiltrate email addresses of existing web application users.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

SPIP: 3.1.0 - 3.2.4

CPE2.3 External links

https://blog.spip.net/Mise-a-jour-CRITIQUE-de-securite-Sortie-de-SPIP-3-2-5-et-SPIP-3-1-11.html
https://core.spip.net/issues/4171
https://seclists.org/bugtraq/2019/Sep/40
https://www.debian.org/security/2019/dsa-4532
https://zone.spip.net/trac/spip-zone/changeset/117577/spip-zone
https://zone.spip.net/trac/spip-zone/changeset/117578/spip-zone


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) HTTP response splitting

EUVDB-ID: #VU21412

Risk: Medium

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

CVE-ID: CVE-2019-16393

CWE-ID: CWE-113 - Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform HTTP splitting attacks.

The vulnerability exists due to software does not corrector process CRLF character sequences in ecrire/inc/headers.php script. A remote attacker can send specially crafted request containing CRLF sequence and make the application send a split HTTP response.

Successful exploitation of the vulnerability may allow an attacker perform cache poisoning attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

SPIP: 3.1.0 - 3.2.4

CPE2.3 External links

https://blog.spip.net/Mise-a-jour-CRITIQUE-de-securite-Sortie-de-SPIP-3-2-5-et-SPIP-3-1-11.html
https://core.spip.net/issues/4362
https://git.spip.net/SPIP/spip/commit/0b832408b0aabd5b94a81e261e9413c0f31a19f1
https://seclists.org/bugtraq/2019/Sep/40
https://www.debian.org/security/2019/dsa-4532


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) Cross-site scripting

EUVDB-ID: #VU21411

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-2019-16392

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 prive/formulaires/login.php. 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

SPIP: 3.1.0 - 3.2.4

CPE2.3 External links

https://blog.spip.net/Mise-a-jour-CRITIQUE-de-securite-Sortie-de-SPIP-3-2-5-et-SPIP-3-1-11.html
https://git.spip.net/SPIP/spip/commit/3c12a82c7d9d4afd09e708748fa82e7836174028
https://seclists.org/bugtraq/2019/Sep/40


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) Improper access control

EUVDB-ID: #VU21410

Risk: Medium

CVSSv4.0: 5.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2019-16391

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions related to ecrire/inc/meta.php and ecrire/inc/securiser_action.php scripts. A remote authenticated website visitor can bypass implemented security restrictions and modify any published content and execute other modifications in the database

Mitigation

Install updates from vendor's website.

Vulnerable software versions

SPIP: 3.1.0 - 3.2.4

CPE2.3 External links

https://blog.spip.net/Mise-a-jour-CRITIQUE-de-securite-Sortie-de-SPIP-3-2-5-et-SPIP-3-1-11.html
https://blog.spip.net/Mise-a-jour-CRITIQUE-de-securite-Sortie-de-SPIP-3-2-5-et-SPIP-3-1-11.html?lang=fr
https://git.spip.net/SPIP/spip/commit/187952ce85e73b52c2753f2d54fc2c44807b8f79
https://git.spip.net/SPIP/spip/commit/3cbc758400323ab006c00ea78eacdb8f76aa5f66
https://seclists.org/bugtraq/2019/Sep/40


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, proof of concept for this vulnerability is available.



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