Common Weakness Enumeration

CWE-327

Allowed-with-Review

Use of a Broken or Risky Cryptographic Algorithm

Abstraction: Class · Status: Draft

API response cwe.mitre.org

The product uses a broken or risky cryptographic algorithm or protocol.

963 vulnerabilities reference this CWE, most recent first.

CVE-2020-7511 (GCVE-0-2020-7511)

Vulnerability from cvelistv5 – Published: 2020-06-16 19:45 – Updated: 2024-08-04 09:33
VLAI
Summary
A CWE-327: Use of a Broken or Risky Cryptographic Algorithm vulnerability exists in Easergy T300 (Firmware version 1.5.2 and older) which could allow an attacker to acquire a password by brute force.
Severity
No CVSS data available.
CWE
  • CWE-327 - Use of a Broken or Risky Cryptographic Algorithm
Assigner
References
Impacted products
Vendor Product Version
n/a Easergy T300 (Firmware version 1.5.2 and older) Affected: Easergy T300 (Firmware version 1.5.2 and older)
Show details on NVD website
To clipboard 

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CVE-2020-7339 (GCVE-0-2020-7339)

Vulnerability from cvelistv5 – Published: 2020-12-09 23:15 – Updated: 2024-08-04 09:25
VLAI
Title
Database Security(DBS)-Use of a Broken or Risky Cryptographic Algorithm
Summary
Use of a Broken or Risky Cryptographic Algorithm vulnerability in McAfee Database Security Server and Sensor prior to 4.8.0 in the form of a SHA1 signed certificate that would allow an attacker on the same local network to potentially intercept communication between the Server and Sensors.
Severity
6.3 (Medium)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CWE
  • CWE-327 - Use of a Broken or Risky Cryptographic Algorithm
Assigner
References
Impacted products
Vendor Product Version
McAfee Database Security Affected: unspecified , < 4.8.0 (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2020-7001 (GCVE-0-2020-7001)

Vulnerability from cvelistv5 – Published: 2020-03-24 20:15 – Updated: 2024-08-04 09:18
VLAI
Summary
In Moxa EDS-G516E Series firmware, Version 5.2 or lower, the affected products use a weak cryptographic algorithm, which may allow confidential information to be disclosed.
Severity
No CVSS data available.
CWE
  • CWE-327 - USE OF A BROKEN OR RISKY CRYPTOGRAPHIC ALGORITHM CWE-327
Assigner
References
Impacted products
Vendor Product Version
n/a Moxa EDS-G516E Series firmware, Version 5.2 or lower Affected: Moxa EDS-G516E Series firmware, Version 5.2 or lower
Show details on NVD website
To clipboard 

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CVE-2020-6987 (GCVE-0-2020-6987)

Vulnerability from cvelistv5 – Published: 2020-03-24 19:00 – Updated: 2024-08-04 09:18
VLAI
Summary
In Moxa PT-7528 series firmware, Version 4.0 or lower, and PT-7828 series firmware, Version 3.9 or lower, the affected products use a weak cryptographic algorithm, which may allow confidential information to be disclosed.
Severity
No CVSS data available.
CWE
  • CWE-327 - USE OF A BROKEN OR RISKY CRYPTOGRAPHIC ALGORITHM CWE-327
Assigner
References
Impacted products
Vendor Product Version
n/a Moxa PT-7528 series firmware, Version 4.0 or lower, PT-7828 series firmware, Version 3.9 or lower Affected: Moxa PT-7528 series firmware, Version 4.0 or lower, PT-7828 series firmware, Version 3.9 or lower
Show details on NVD website
To clipboard 

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CVE-2020-6984 (GCVE-0-2020-6984)

Vulnerability from cvelistv5 – Published: 2020-03-16 15:41 – Updated: 2026-06-03 13:22
VLAI
Summary
Rockwell Automation MicroLogix 1400 Controllers Series B v21.001 and prior, Series A, all versions, MicroLogix 1100 Controller, all versions, RSLogix 500 Software v12.001 and prior, The cryptographic function utilized to protect the password in MicroLogix is discoverable.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-327 - USE OF A BROKEN OR RISKY ALGORITHM FOR PASSWORD PROTECTION USE OF CLIENT-SIDE AUTHENTICATION CWE-327
  • CWE-327 - Use of a Broken or Risky Cryptographic Algorithm
Assigner
References
Impacted products
Vendor Product Version
n/a Rockwell Automation MicroLogix 1400 Controllers Series B v21.001 and prior, Series A, all versions, MicroLogix 1100 Controller, all versions, RSLogix 500 Software v12.001 and prior Affected: Rockwell Automation MicroLogix 1400 Controllers Series B v21.001 and prior, Series A, all versions, MicroLogix 1100 Controller, all versions, RSLogix 500 Software v12.001 and prior
Show details on NVD website
To clipboard 

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CVE-2020-5229 (GCVE-0-2020-5229)

Vulnerability from cvelistv5 – Published: 2020-01-30 20:05 – Updated: 2024-08-04 08:22
VLAI
Title
Opencast stores passwords using outdated MD5 hash algorithm
Summary
Opencast before 8.1 stores passwords using the rather outdated and cryptographically insecure MD5 hash algorithm. Furthermore, the hashes are salted using the username instead of a random salt, causing hashes for users with the same username and password to collide which is problematic especially for popular users like the default `admin` user. This essentially means that for an attacker, it might be feasible to reconstruct a user's password given access to these hashes. Note that attackers needing access to the hashes means that they must gain access to the database in which these are stored first to be able to start cracking the passwords. The problem is addressed in Opencast 8.1 which now uses the modern and much stronger bcrypt password hashing algorithm for storing passwords. Note, that old hashes remain MD5 until the password is updated. For a list of users whose password hashes are stored using MD5, take a look at the `/user-utils/users/md5.json` REST endpoint.
Severity
7.7 (High)
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N
CWE
  • CWE-327 - Use of a Broken or Risky Cryptographic Algorithm
Assigner
References
Impacted products
Vendor Product Version
opencast opencast Affected: < 8.1
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2020-4874 (GCVE-0-2020-4874)

Vulnerability from cvelistv5 – Published: 2024-05-03 16:47 – Updated: 2024-08-04 08:14
VLAI
Title
IBM Cognos Controller information disclosure
Summary
IBM Cognos Controller 10.4.1, 10.4.2, and 11.0.0 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. IBM X-Force ID: 190837.
Severity
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-327 - Use of a Broken or Risky Cryptographic Algorithm
Assigner
ibm
References
Impacted products
Vendor Product Version
IBM Cognos Controller Affected: 10.4.1, 10.4.2, 11.0.0
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2019-25651 (GCVE-0-2019-25651)

Vulnerability from cvelistv5 – Published: 2026-03-27 21:16 – Updated: 2026-07-15 01:24
VLAI
Title
Ubiquiti UniFi Devices Use of AES-CBC Allows Key Recovery and Unauthorized Device Control
Summary
Ubiquiti UniFi Network Controller prior to 5.10.12 (excluding 5.6.42), UAP FW prior to 4.0.6, UAP-AC, UAP-AC v2, and UAP-AC Outdoor FW prior to 3.8.17, USW FW prior to 4.0.6, USG FW prior to 4.4.34 uses AES-CBC encryption for device-to-controller communication, which contains cryptographic weaknesses that allow attackers to recover encryption keys from captured traffic. Attackers with adjacent network access can capture sufficient encrypted traffic and exploit AES-CBC mode vulnerabilities to derive the encryption keys, enabling unauthorized control and management of network devices.
Severity
9 (Critical)
CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
8.3 (High)
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-327 - Use of a Broken or Risky Cryptographic Algorithm
Assigner
References
Impacted products
Date Public
2019-05-15 00:00
Show details on NVD website
To clipboard 

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CVE-2019-18340 (GCVE-0-2019-18340)

Vulnerability from cvelistv5 – Published: 2019-12-12 19:08 – Updated: 2024-08-05 01:54
VLAI
Summary
A vulnerability has been identified in Control Center Server (CCS) (All versions < V1.5.0), Control Center Server (CCS) (All versions >= V1.5.0), SiNVR/SiVMS Video Server (All versions < V5.0.0), SiNVR/SiVMS Video Server (All versions >= V5.0.0). Both the SiVMS/SiNVR Video Server and the Control Center Server (CCS) store user and device passwords by applying weak cryptography. A local attacker could exploit this vulnerability to extract the passwords from the user database and/or the device configuration files to conduct further attacks.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:F/RL:U/RC:C
CWE
  • CWE-327 - Use of a Broken or Risky Cryptographic Algorithm
Assigner
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2019-15795 (GCVE-0-2019-15795)

Vulnerability from cvelistv5 – Published: 2020-03-26 13:00 – Updated: 2024-09-16 19:45
VLAI
Title
python-apt uses MD5 for validation
Summary
python-apt only checks the MD5 sums of downloaded files in `Version.fetch_binary()` and `Version.fetch_source()` of apt/package.py in version 1.9.0ubuntu1 and earlier. This allows a man-in-the-middle attack which could potentially be used to install altered packages and has been fixed in versions 1.9.0ubuntu1.2, 1.6.5ubuntu0.1, 1.1.0~beta1ubuntu0.16.04.7, 0.9.3.5ubuntu3+esm2, and 0.8.3ubuntu7.5.
Severity
4.7 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
CWE
  • CWE-327 - Use of a Broken or Risky Cryptographic Algorithm
Assigner
References
URL Tags
https://usn.ubuntu.com/4247-1/ vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/4247-3/ vendor-advisoryx_refsource_UBUNTU
Impacted products
Vendor Product Version
Canonical Python-apt Affected: 0.8.3 , < 0.8.3ubuntu7.5 (custom)
Affected: 0.9.3.5 , < 0.9.3.5ubuntu3+esm2 (custom)
Affected: 1.1.0 , < 1.1.0~beta1ubuntu0.16.04.7 (custom)
Affected: 1.6.5 , < 1.6.5ubuntu0.1 (custom)
Affected: 1.9.0 , < 1.9.0ubuntu1.2 (custom)
Create a notification for this product.
Date Public
2019-08-06 00:00
Credits
Julian Andres Klode
Show details on NVD website
To clipboard 

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Mitigation MIT-24
Architecture and Design

Strategy: Libraries or Frameworks

  • When there is a need to store or transmit sensitive data, use strong, up-to-date cryptographic algorithms to encrypt that data. Select a well-vetted algorithm that is currently considered to be strong by experts in the field, and use well-tested implementations. As with all cryptographic mechanisms, the source code should be available for analysis.
  • For example, US government systems require FIPS 140-2 certification [REF-1192].
  • Do not develop custom or private cryptographic algorithms. They will likely be exposed to attacks that are well-understood by cryptographers. Reverse engineering techniques are mature. If the algorithm can be compromised if attackers find out how it works, then it is especially weak.
  • Periodically ensure that the cryptography has not become obsolete. Some older algorithms, once thought to require a billion years of computing time, can now be broken in days or hours. This includes MD4, MD5, SHA1, DES, and other algorithms that were once regarded as strong. [REF-267]
Mitigation MIT-52
Architecture and Design

Ensure that the design allows one cryptographic algorithm to be replaced with another in the next generation or version. Where possible, use wrappers to make the interfaces uniform. This will make it easier to upgrade to stronger algorithms. With hardware, design the product at the Intellectual Property (IP) level so that one cryptographic algorithm can be replaced with another in the next generation of the hardware product.

Mitigation
Architecture and Design

Carefully manage and protect cryptographic keys (see CWE-320). If the keys can be guessed or stolen, then the strength of the cryptography itself is irrelevant.

Mitigation MIT-4
Architecture and Design

Strategy: Libraries or Frameworks

  • Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid [REF-1482].
  • Industry-standard implementations will save development time and may be more likely to avoid errors that can occur during implementation of cryptographic algorithms. Consider the ESAPI Encryption feature.
Mitigation MIT-25
Implementation Architecture and Design

When using industry-approved techniques, use them correctly. Don't cut corners by skipping resource-intensive steps (CWE-325). These steps are often essential for preventing common attacks.

CAPEC-20: Encryption Brute Forcing

An attacker, armed with the cipher text and the encryption algorithm used, performs an exhaustive (brute force) search on the key space to determine the key that decrypts the cipher text to obtain the plaintext.

CAPEC-459: Creating a Rogue Certification Authority Certificate

An adversary exploits a weakness resulting from using a hashing algorithm with weak collision resistance to generate certificate signing requests (CSR) that contain collision blocks in their "to be signed" parts. The adversary submits one CSR to be signed by a trusted certificate authority then uses the signed blob to make a second certificate appear signed by said certificate authority. Due to the hash collision, both certificates, though different, hash to the same value and so the signed blob works just as well in the second certificate. The net effect is that the adversary's second X.509 certificate, which the Certification Authority has never seen, is now signed and validated by that Certification Authority.

CAPEC-473: Signature Spoof

An attacker generates a message or datablock that causes the recipient to believe that the message or datablock was generated and cryptographically signed by an authoritative or reputable source, misleading a victim or victim operating system into performing malicious actions.

CAPEC-475: Signature Spoofing by Improper Validation

An adversary exploits a cryptographic weakness in the signature verification algorithm implementation to generate a valid signature without knowing the key.

CAPEC-608: Cryptanalysis of Cellular Encryption

The use of cryptanalytic techniques to derive cryptographic keys or otherwise effectively defeat cellular encryption to reveal traffic content. Some cellular encryption algorithms such as A5/1 and A5/2 (specified for GSM use) are known to be vulnerable to such attacks and commercial tools are available to execute these attacks and decrypt mobile phone conversations in real-time. Newer encryption algorithms in use by UMTS and LTE are stronger and currently believed to be less vulnerable to these types of attacks. Note, however, that an attacker with a Cellular Rogue Base Station can force the use of weak cellular encryption even by newer mobile devices.

CAPEC-614: Rooting SIM Cards

SIM cards are the de facto trust anchor of mobile devices worldwide. The cards protect the mobile identity of subscribers, associate devices with phone numbers, and increasingly store payment credentials, for example in NFC-enabled phones with mobile wallets. This attack leverages over-the-air (OTA) updates deployed via cryptographically-secured SMS messages to deliver executable code to the SIM. By cracking the DES key, an attacker can send properly signed binary SMS messages to a device, which are treated as Java applets and are executed on the SIM. These applets are allowed to send SMS, change voicemail numbers, and query the phone location, among many other predefined functions. These capabilities alone provide plenty of potential for abuse.

CAPEC-97: Cryptanalysis

Cryptanalysis is a process of finding weaknesses in cryptographic algorithms and using these weaknesses to decipher the ciphertext without knowing the secret key (instance deduction). Sometimes the weakness is not in the cryptographic algorithm itself, but rather in how it is applied that makes cryptanalysis successful. An attacker may have other goals as well, such as: Total Break (finding the secret key), Global Deduction (finding a functionally equivalent algorithm for encryption and decryption that does not require knowledge of the secret key), Information Deduction (gaining some information about plaintexts or ciphertexts that was not previously known) and Distinguishing Algorithm (the attacker has the ability to distinguish the output of the encryption (ciphertext) from a random permutation of bits).

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