EasyApache 4 update for NodeJS



Published: 2021-03-05
Risk Medium
Patch available YES
Number of vulnerabilities 3
CVE ID CVE-2020-8265
CVE-2020-8287
CVE-2020-1971
CWE ID CWE-416
CWE-444
CWE-476
Exploitation vector Network
Public exploit Public exploit code for vulnerability #2 is available.
Public exploit code for vulnerability #3 is available.
Vulnerable software
Subscribe
EasyApache
Server applications / Other server solutions

Vendor cPanel, Inc

Security Advisory

1) Use-after-free

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2020-8265

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to a use-after-free error in TLSWrap within the TLS implementation. A remote attacker can send specially crafted data to the service and perform a denial of service (DoS) attack.


Mitigation

Install update from vendor's website.

Vulnerable software versions

EasyApache: 4 2017-5-16, 4 2017-6-13, 4 2017-6-21, 4 2017-7-11, 4 2017-7-18, 4 2017-8-8, 4 2017-8-17, 4 2017-9-6, 4 2017-9-20, 4 2017-10-3, 4 2017-10-12, 4 2017-10-16, 4 2017-10-31, 4 2017-11-7, 4 2017-11-29, 4 2017-12-5, 4 2017-12-21, 4 2018-1-9, 4 2018-1-18, 4 2018-1-25, 4 2018-2-6, 4 2018-3-6, 4 2018-3-21, 4 2018-4-3, 4 2018-5-1, 4 2018-5-22, 4 2018-5-29, 4 2018-6-19, 4 2018-6-27, 4 2018-7-18, 4 2018-7-25, 4 2018-8-14, 4 2018-8-22, 4 2018-8-29, 4 2018-9-19, 4 2018-10-10, 4 2018-10-17, 4 2018-10-31, 4 2018-11-7, 4 2018-11-14, 4 2018-12-5, 4 2018-12-11, 4 2019-1-9, 4 2019-1-16, 4 2019-1-30, 4 2019-2-6, 4 2019-2-13, 4 2019-2-20, 4 2019-3-7, 4 2019-3-13, 4 2019-4-3, 4 2019-4-9, 4 2019-4-24, 4 2019-5-8, 4 2019-5-15, 4 2019-5-29, 4 2019-6-5, 4 2019-7-3, 4 2019-7-10, 4 2019-7-24, 4 2019-8-7, 4 2019-8-21, 4 2019-9-4, 4 2019-9-17, 4 2019-10-2, 4 2019-10-9, 4 2019-10-23, 4 2019-10-30, 4 2019-11-20, 4 2019-11-26, 4 2019-12-18, 4 2019-12-23, 4 2020-1-22, 4 2020-1-29, 4 2020-2-26, 4 2020-3-18, 4 2020-3-25, 4 2020-4-1, 4 2020-4-2, 4 2020-4-8, 4 2020-4-15, 4 2020-4-22, 4 2020-5-6, 4 2020-5-21, 4 2020-6-17, 4 2020-7-1, 4 2020-7-8, 4 2020-7-15, 4 2020-7-29, 4 2020-8-5, 4 2020-8-12, 4 2020-8-26, 4 2020-9-9, 4 2020-9-23, 4 2020-9-30, 4 2020-10-7, 4 2020-10-14, 4 2020-10-28, 4 2020-11-4, 4 2020-11-11, 4 2020-12-2, 4 2020-12-9, 4 2020-12-23, 4 2021-1-13, 4 2021-2-4, 4 2021-2-10, 4 2021-2-24, 4 20201-1-13

CPE External links

https://news.cpanel.com/easyapache-4-march-3-release/

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 request smuggling

Risk: Medium

CVSSv3.1: 5.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:P/RL:O/RC:C] [PCI]

CVE-ID: CVE-2020-8287

CWE-ID: CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling')

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to preform HTTP request smuggling attacks.

The vulnerability exists due to improper validation of HTTP requests. A remote attacker can send a specially crafted HTTP request to the server and smuggle arbitrary HTTP headers.

Successful exploitation of vulnerability may allow an attacker to poison HTTP cache and perform phishing attacks.

Mitigation

Install update from vendor's website.

Vulnerable software versions

EasyApache: 4 2017-5-16, 4 2017-6-13, 4 2017-6-21, 4 2017-7-11, 4 2017-7-18, 4 2017-8-8, 4 2017-8-17, 4 2017-9-6, 4 2017-9-20, 4 2017-10-3, 4 2017-10-12, 4 2017-10-16, 4 2017-10-31, 4 2017-11-7, 4 2017-11-29, 4 2017-12-5, 4 2017-12-21, 4 2018-1-9, 4 2018-1-18, 4 2018-1-25, 4 2018-2-6, 4 2018-3-6, 4 2018-3-21, 4 2018-4-3, 4 2018-5-1, 4 2018-5-22, 4 2018-5-29, 4 2018-6-19, 4 2018-6-27, 4 2018-7-18, 4 2018-7-25, 4 2018-8-14, 4 2018-8-22, 4 2018-8-29, 4 2018-9-19, 4 2018-10-10, 4 2018-10-17, 4 2018-10-31, 4 2018-11-7, 4 2018-11-14, 4 2018-12-5, 4 2018-12-11, 4 2019-1-9, 4 2019-1-16, 4 2019-1-30, 4 2019-2-6, 4 2019-2-13, 4 2019-2-20, 4 2019-3-7, 4 2019-3-13, 4 2019-4-3, 4 2019-4-9, 4 2019-4-24, 4 2019-5-8, 4 2019-5-15, 4 2019-5-29, 4 2019-6-5, 4 2019-7-3, 4 2019-7-10, 4 2019-7-24, 4 2019-8-7, 4 2019-8-21, 4 2019-9-4, 4 2019-9-17, 4 2019-10-2, 4 2019-10-9, 4 2019-10-23, 4 2019-10-30, 4 2019-11-20, 4 2019-11-26, 4 2019-12-18, 4 2019-12-23, 4 2020-1-22, 4 2020-1-29, 4 2020-2-26, 4 2020-3-18, 4 2020-3-25, 4 2020-4-1, 4 2020-4-2, 4 2020-4-8, 4 2020-4-15, 4 2020-4-22, 4 2020-5-6, 4 2020-5-21, 4 2020-6-17, 4 2020-7-1, 4 2020-7-8, 4 2020-7-15, 4 2020-7-29, 4 2020-8-5, 4 2020-8-12, 4 2020-8-26, 4 2020-9-9, 4 2020-9-23, 4 2020-9-30, 4 2020-10-7, 4 2020-10-14, 4 2020-10-28, 4 2020-11-4, 4 2020-11-11, 4 2020-12-2, 4 2020-12-9, 4 2020-12-23, 4 2021-1-13, 4 2021-2-4, 4 2021-2-10, 4 2021-2-24, 4 20201-1-13

CPE External links

https://news.cpanel.com/easyapache-4-march-3-release/

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.

3) NULL pointer dereference

Risk: Medium

CVSSv3.1: 5.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C] [PCI]

CVE-ID: CVE-2020-1971

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: Yes

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. A remote attacker can trigger denial of service conditions via the API functions TS_RESP_verify_response and TS_RESP_verify_token). If an attacker can control both items being compared then that attacker could trigger a crash. For example if the attacker can trick a client or server into checking a malicious certificate against a malicious CRL then this may occur. Note that some applications automatically download CRLs based on a URL embedded in a certificate. This checking happens prior to the signatures on the certificate and CRL being verified. OpenSSL's s_server, s_client and verify tools have support for the "-crl_download" option which implements automatic CRL downloading and this attack has been demonstrated to work against those tools. Note that an unrelated bug means that affected versions of OpenSSL cannot parse or construct correct encodings of EDIPARTYNAME. However it is possible to construct a malformed EDIPARTYNAME that OpenSSL's parser will accept and hence trigger this attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

EasyApache: 4 2017-5-16, 4 2017-6-13, 4 2017-6-21, 4 2017-7-11, 4 2017-7-18, 4 2017-8-8, 4 2017-8-17, 4 2017-9-6, 4 2017-9-20, 4 2017-10-3, 4 2017-10-12, 4 2017-10-16, 4 2017-10-31, 4 2017-11-7, 4 2017-11-29, 4 2017-12-5, 4 2017-12-21, 4 2018-1-9, 4 2018-1-18, 4 2018-1-25, 4 2018-2-6, 4 2018-3-6, 4 2018-3-21, 4 2018-4-3, 4 2018-5-1, 4 2018-5-22, 4 2018-5-29, 4 2018-6-19, 4 2018-6-27, 4 2018-7-18, 4 2018-7-25, 4 2018-8-14, 4 2018-8-22, 4 2018-8-29, 4 2018-9-19, 4 2018-10-10, 4 2018-10-17, 4 2018-10-31, 4 2018-11-7, 4 2018-11-14, 4 2018-12-5, 4 2018-12-11, 4 2019-1-9, 4 2019-1-16, 4 2019-1-30, 4 2019-2-6, 4 2019-2-13, 4 2019-2-20, 4 2019-3-7, 4 2019-3-13, 4 2019-4-3, 4 2019-4-9, 4 2019-4-24, 4 2019-5-8, 4 2019-5-15, 4 2019-5-29, 4 2019-6-5, 4 2019-7-3, 4 2019-7-10, 4 2019-7-24, 4 2019-8-7, 4 2019-8-21, 4 2019-9-4, 4 2019-9-17, 4 2019-10-2, 4 2019-10-9, 4 2019-10-23, 4 2019-10-30, 4 2019-11-20, 4 2019-11-26, 4 2019-12-18, 4 2019-12-23, 4 2020-1-22, 4 2020-1-29, 4 2020-2-26, 4 2020-3-18, 4 2020-3-25, 4 2020-4-1, 4 2020-4-2, 4 2020-4-8, 4 2020-4-15, 4 2020-4-22, 4 2020-5-6, 4 2020-5-21, 4 2020-6-17, 4 2020-7-1, 4 2020-7-8, 4 2020-7-15, 4 2020-7-29, 4 2020-8-5, 4 2020-8-12, 4 2020-8-26, 4 2020-9-9, 4 2020-9-23, 4 2020-9-30, 4 2020-10-7, 4 2020-10-14, 4 2020-10-28, 4 2020-11-4, 4 2020-11-11, 4 2020-12-2, 4 2020-12-9, 4 2020-12-23, 4 2021-1-13, 4 2021-2-4, 4 2021-2-10, 4 2021-2-24, 4 20201-1-13

CPE External links

https://news.cpanel.com/easyapache-4-march-3-release/

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.



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