Red Hat Software Collections update for rh-php73-php



Risk Medium
Patch available YES
Number of vulnerabilities 6
CVE-ID CVE-2020-7068
CVE-2020-7069
CVE-2020-7070
CVE-2020-7071
CVE-2021-21702
CVE-2021-21705
CWE-ID CWE-416
CWE-310
CWE-20
CWE-476
CWE-918
Exploitation vector Network
Public exploit Public exploit code for vulnerability #4 is available.
Vulnerable software
 rh-php73-php (Red Hat package)
Operating systems & Components / Operating system package or component

Red Hat Software Collections
Universal components / Libraries / Software for developers

Vendor Red Hat Inc.

Security Bulletin

This security bulletin contains information about 6 vulnerabilities.

1) Use-after-free

EUVDB-ID: #VU34121

Risk: Medium

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

CVE-ID: CVE-2020-7068

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error in the "phar_parse_zipfile" function. A remote attacker can can cause a denial of service (DoS) condition on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

rh-php73-php (Red Hat package): 7.3.20-1.el7

Red Hat Software Collections: 1 for RHEL 7 - 1 for RHEL 7.7

CPE2.3 External links

http://access.redhat.com/errata/RHSA-2021:2992


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) Cryptographic issues

EUVDB-ID: #VU47253

Risk: Low

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:Clear]

CVE-ID: CVE-2020-7069

CWE-ID: CWE-310 - Cryptographic Issues

Exploit availability: No

Description

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

The vulnerability exists due to the openssl_encrypt() function generates a wrong ciphertext and a wrong tag for AES-CCM for a 12 bytes IV. As a result, a 7-byte nonce is used instead of 12 bytes. A remote attacker can abuse such behavior and decrypt data.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

rh-php73-php (Red Hat package): 7.3.20-1.el7

Red Hat Software Collections: 1 for RHEL 7 - 1 for RHEL 7.7

CPE2.3 External links

http://access.redhat.com/errata/RHSA-2021:2992


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) Input validation error

EUVDB-ID: #VU47252

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-2020-7070

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a spoofing attack.

The vulnerability exists in the way PHP parser handles cookies with percent character (e.g. '%'). A remote attacker can send a crafted HTTP request with a `__%48ost-` or `__%53ecure-` cookie that will be processed before other cookies sent in the same request. As a result, an attacker can set malicious `__Host-` cookie on a subdomain and bypass origin restrictions, imposed by browsers.

Successful exploitation of the vulnerability may allow an attacker to perform a spoofing attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

rh-php73-php (Red Hat package): 7.3.20-1.el7

Red Hat Software Collections: 1 for RHEL 7 - 1 for RHEL 7.7

CPE2.3 External links

http://access.redhat.com/errata/RHSA-2021:2992


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) Input validation error

EUVDB-ID: #VU49338

Risk: Medium

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

CVE-ID: CVE-2020-7071

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to insufficient validation of URL performed via the "FILTER_VALIDATE_URL" setting. A remote attacker can use the "@" characters in the URL to bypass implemented filter and force the application to accept arbitrary URL instead of the defined by the option.

Example:

http://evel.website@trusted.website

Mitigation

Install updates from vendor's website.

Vulnerable software versions

rh-php73-php (Red Hat package): 7.3.20-1.el7

Red Hat Software Collections: 1 for RHEL 7 - 1 for RHEL 7.7

CPE2.3 External links

http://access.redhat.com/errata/RHSA-2021:2992


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.

5) NULL pointer dereference

EUVDB-ID: #VU50403

Risk: Medium

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

CVE-ID: CVE-2021-21702

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error within the SoapClient in PHP. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

rh-php73-php (Red Hat package): 7.3.20-1.el7

Red Hat Software Collections: 1 for RHEL 7 - 1 for RHEL 7.7

CPE2.3 External links

http://access.redhat.com/errata/RHSA-2021:2992


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) Server-Side Request Forgery (SSRF)

EUVDB-ID: #VU54565

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:L/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-21705

CWE-ID: CWE-918 - Server-Side Request Forgery (SSRF)

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to perform SSRF attacks.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can send a specially crafted HTTP request, bypass the FILTER_VALIDATE_URL and trick the application to initiate requests to arbitrary systems.

Successful exploitation of this vulnerability may allow a remote attacker gain access to sensitive data, located in the local network or send malicious requests to other servers from the vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

rh-php73-php (Red Hat package): 7.3.20-1.el7

Red Hat Software Collections: 1 for RHEL 7 - 1 for RHEL 7.7

CPE2.3 External links

http://access.redhat.com/errata/RHSA-2021:2992


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.



###SIDEBAR###