Security Bulletin
Summary
Cloud Pak for Security (CP4S) v1.7.1.0 and older is vulnerable to multiple CVEs. These have been addressed in the latest product release, CP4S v1.7.2.0.
Vulnerability Details
CVEID: CVE-2021-20305
DESCRIPTION: Nettle could allow a remote attacker to bypass security restrictions, caused by a flaw related to several signature verification functions result in the Elliptic Curve Cryptography point (ECC) multiply function being invoked with out-of-range scalers. An attacker could exploit this vulnerability to force an invalid signature, causing an assertion failure or possible validation.
CVSS Base score: 8.1
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/199653 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)
CVEID: CVE-2020-1971
DESCRIPTION: OpenSSL is vulnerable to a denial of service, caused by a NULL pointer dereference. If the GENERAL_NAME_cmp function contain an EDIPARTYNAME, an attacker could exploit this vulnerability to cause the application to crash.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/192748 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
CVEID: CVE-2021-3449
DESCRIPTION: OpenSSL is vulnerable to a denial of service, caused by a NULL pointer dereference in signature_algorithms processing. By sending a specially crafted renegotiation
ClientHello message from a client, a remote attacker could exploit this vulnerability to cause the TLS server to crash.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/198752 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
CVEID: CVE-2021-3450
DESCRIPTION: OpenSSL could allow a remote attacker to bypass security restrictions, caused by a a missing check in the validation logic of X.509 certificate chains by the X509_V_FLAG_X509_STRICT flag. By using any valid certificate or certificate chain to sign a specially crafted certificate, an attacker could bypass the check that non-CA certificates must not be able to issue other certificates and override the default purpose.
CVSS Base score: 7.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/198754 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H)
CVEID: CVE-2020-24659
DESCRIPTION: GnuTLS is vulnerable to a denial of service, caused by a NULL pointer dereference. By sending specially-crafted messages, a remote attacker could exploit this vulnerability to cause the application to crash.
CVSS Base score: 5.9
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/187828 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)
CVEID: CVE-2021-20539
DESCRIPTION: IBM Cloud Pak for Security (CP4S) could disclose sensitive information to an unauthorized user through HTTP GET requests. This information could be used in further attacks against the system.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/198920 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
CVEID: CVE-2020-27619
DESCRIPTION: An unspecified error with CJK codec tests call eval() on content retrieved throug HTTP in multibytecodec_support.py in Python has an unknown impact and attack vector.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/190408 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
CVEID: CVE-2020-26116
DESCRIPTION: Python is vulnerable to CRLF injection, caused by improper validation of user-supplied input in http.client. By inserting CR and LF control characters in the first argument of HTTPConnection.request, a remote attacker could exploit this vulnerability to conduct various attacks against the vulnerable system, including cross-site scripting, cache poisoning or session hijacking.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/189404 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N)
CVEID: CVE-2021-3177
DESCRIPTION: Python is vulnerable to a buffer overflow, caused by improper bounds checking by the PyCArg_repr function in _ctypes/callproc.c. By sending specially-crafted arguments to c_double.from_param, a remote attacker could overflow a buffer and execute arbitrary code on the system.
CVSS Base score: 9.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/195244 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
CVEID: CVE-2021-20541
DESCRIPTION: IBM Cloud Pak for Security (CP4S) could disclose sensitive information to an unauthorized user through HTTP GET requests. This information could be used in further attacks against the system.
CVSS Base score: 3.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/198927 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N)
CVEID: CVE-2021-29696
DESCRIPTION: IBM Cloud Pak for Security (CP4S) could allow a remote authenticated attacker to execute arbitrary commands on the system by sending a specially crafted request.
CVSS Base score: 8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/200597 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H)
CVEID: CVE-2021-20540
DESCRIPTION: IBM Cloud Pak for Security (CP4S) could disclose sensitive information to an unauthorized user through HTTP GET requests. This information could be used in further attacks against the system.
CVSS Base score: 2.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/198923 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N)
CVEID: CVE-2021-29697
DESCRIPTION: IBM Cloud Pak for Security (CP4S) could allow a remote authenticated attacker to obtain sensitive information through HTTP requests that could be used in further attacks against the system.
CVSS Base score: 4.9
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/200598 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N)
Affected Products and Versions
| Affected Product(s) | Version(s) |
| Cloud Pak for Security (CP4S) | 1.5.0.0 |
| Cloud Pak for Security (CP4S) | 1.5.1.0 |
| Cloud Pak for Security (CP4S) | 1.6.0.0 |
| Cloud Pak for Security (CP4S) | 1.6.1.0 |
| Cloud Pak for Security (CP4S) | 1.7.0.0 |
| Cloud Pak for Security (CP4S) | 1.7.1.0 |
Remediation/Fixes
Please upgrade to CP4S 1.7.2.0 by following instructions in IBM Documentation at https://www.ibm.com/docs/en/SSTDPP_1.7/docs/security-pak/upgrading_172.html
Workarounds and Mitigations
None
Get Notified about Future Security Bulletins
References
Acknowledgement
X-Force Ethical Hacking Team: John Zuccato, Rodney Ryan, Chris Shepherd, Nathan Roane, Vincent Dragnea, Troy Fisher, Elaheh Samani, Gabor Minyo., John Zuccato, Rodney Ryan, Chris Shepherd, Vince Dragnea, Troy Fisher, Nathan Roane, Elaheh Samani and G
Change History
29 Jul 2021: Initial Publication
*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.
Disclaimer
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
Document Location
Worldwide
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Document Information
Modified date:
30 July 2021
UID
ibm16476940