Common Weakness Enumeration

CWE-521

Allowed

Weak Password Requirements

Abstraction: Base · Status: Draft

The product does not require that users should have strong passwords.

351 vulnerabilities reference this CWE, most recent first.

GHSA-P8X4-V7CR-CQW5

Vulnerability from github – Published: 2024-12-05 15:31 – Updated: 2025-08-28 00:30
VLAI
Details

Default Credentail vulnerabilities allows access to an Aspect device using publicly available default credentials since the system does not require the installer to change default credentials.  Affected products:

ABB ASPECT - Enterprise v3.07.02; NEXUS Series v3.07.02; MATRIX Series v3.07.02

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2024-51555"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1393",
      "CWE-521"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-12-05T13:15:08Z",
    "severity": "CRITICAL"
  },
  "details": "Default Credentail vulnerabilities allows access to an Aspect device using publicly available default credentials since the system does not require the installer to change default credentials.\u00a0\nAffected products:\n\n\nABB ASPECT - Enterprise v3.07.02; \nNEXUS Series v3.07.02; \nMATRIX Series v3.07.02",
  "id": "GHSA-p8x4-v7cr-cqw5",
  "modified": "2025-08-28T00:30:27Z",
  "published": "2024-12-05T15:31:02Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-51555"
    },
    {
      "type": "WEB",
      "url": "https://search.abb.com/library/Download.aspx?DocumentID=9AKK108469A7497\u0026LanguageCode=en\u0026DocumentPartId=\u0026Action=Launch"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

GHSA-PM72-27MG-FC28

Vulnerability from github – Published: 2023-01-29 03:30 – Updated: 2023-02-06 16:46
VLAI
Summary
Froxlor contains Weak Password Requirements
Details

Weak Password Requirements in GitHub repository froxlor/froxlor prior to 2.0.10.

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "froxlor/froxlor"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.0.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-0564"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-521"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-01-31T23:32:09Z",
    "nvd_published_at": "2023-01-29T01:15:00Z",
    "severity": "HIGH"
  },
  "details": "Weak Password Requirements in GitHub repository froxlor/froxlor prior to 2.0.10.",
  "id": "GHSA-pm72-27mg-fc28",
  "modified": "2023-02-06T16:46:41Z",
  "published": "2023-01-29T03:30:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-0564"
    },
    {
      "type": "WEB",
      "url": "https://github.com/froxlor/froxlor/commit/2a84e9c1207fd3d792b7fb198fd0c66fe1a66a7a"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/froxlor/froxlor"
    },
    {
      "type": "WEB",
      "url": "https://huntr.dev/bounties/a4f86d6f-0d5d-428d-a4b3-551b20a21ce6"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Froxlor contains Weak Password Requirements"
}

GHSA-PQ38-4543-Q439

Vulnerability from github – Published: 2024-07-18 18:31 – Updated: 2024-07-18 18:31
VLAI
Details

Philips Vue PACS does not require that users have strong passwords, which could make it easier for attackers to compromise user accounts.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2023-40539"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-521"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-07-18T17:15:03Z",
    "severity": "MODERATE"
  },
  "details": "Philips Vue PACS does not require that users have strong passwords, which could make it easier for attackers to compromise user accounts.",
  "id": "GHSA-pq38-4543-q439",
  "modified": "2024-07-18T18:31:42Z",
  "published": "2024-07-18T18:31:42Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-40539"
    },
    {
      "type": "WEB",
      "url": "https://www.cisa.gov/news-events/ics-medical-advisories/icsma-24-200-01"
    },
    {
      "type": "WEB",
      "url": "http://www.philips.com/productsecurity"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

GHSA-PRWV-6Q8W-VFGQ

Vulnerability from github – Published: 2025-08-19 21:30 – Updated: 2025-08-19 21:30
VLAI
Details

An issue was discovered in Cicool builder 3.4.4 allowing attackers to reset the administrator's password via the /administrator/auth/reset_password endpoint.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2025-51543"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-306",
      "CWE-521"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-08-19T20:15:34Z",
    "severity": "MODERATE"
  },
  "details": "An issue was discovered in Cicool builder 3.4.4 allowing attackers to reset the administrator\u0027s password via the /administrator/auth/reset_password endpoint.",
  "id": "GHSA-prwv-6q8w-vfgq",
  "modified": "2025-08-19T21:30:37Z",
  "published": "2025-08-19T21:30:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-51543"
    },
    {
      "type": "WEB",
      "url": "https://github.com/JustDinooo/CVEs/blob/main/CVE-2025-51543/poc.md"
    },
    {
      "type": "WEB",
      "url": "http://cicool.com"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-PVV5-7GWV-CVMF

Vulnerability from github – Published: 2024-02-03 03:30 – Updated: 2025-11-04 00:30
VLAI
Details

IBM Security Access Manager Container (IBM Security Verify Access Appliance 10.0.0.0 through 10.0.6.1 and IBM Security Verify Access Docker 10.0.0.0 through 10.0.6.1) could allow a remote user to log into the server due to a user account with an empty password. IBM X-Force ID: 266154.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2023-43016"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-258",
      "CWE-521"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-02-03T01:15:09Z",
    "severity": "HIGH"
  },
  "details": "IBM Security Access Manager Container (IBM Security Verify Access Appliance 10.0.0.0 through 10.0.6.1 and IBM Security Verify Access Docker 10.0.0.0 through 10.0.6.1) could allow a remote user to log into the server due to a user account with an empty password.  IBM X-Force ID:  266154.",
  "id": "GHSA-pvv5-7gwv-cvmf",
  "modified": "2025-11-04T00:30:45Z",
  "published": "2024-02-03T03:30:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-43016"
    },
    {
      "type": "WEB",
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/266154"
    },
    {
      "type": "WEB",
      "url": "https://www.ibm.com/support/pages/node/7106586"
    },
    {
      "type": "WEB",
      "url": "http://seclists.org/fulldisclosure/2024/Nov/0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-Q365-F29F-FCPR

Vulnerability from github – Published: 2024-09-22 03:30 – Updated: 2024-09-29 03:31
VLAI
Details

CheckUser in ScadaServerEngine/MainLogic.cs in Rapid SCADA through 5.8.4 allows an empty password.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2024-47221"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-521"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-09-22T01:15:12Z",
    "severity": "HIGH"
  },
  "details": "CheckUser in ScadaServerEngine/MainLogic.cs in Rapid SCADA through 5.8.4 allows an empty password.",
  "id": "GHSA-q365-f29f-fcpr",
  "modified": "2024-09-29T03:31:25Z",
  "published": "2024-09-22T03:30:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-47221"
    },
    {
      "type": "WEB",
      "url": "https://github.com/RapidScada/scada/commit/b14cbdfa6cf3a205e57f2383c915365adc3859a7"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-Q47W-2GM2-G2H9

Vulnerability from github – Published: 2022-05-13 01:49 – Updated: 2022-05-13 01:49
VLAI
Details

IBM Security Guardium Big Data Intelligence (SonarG) 3.1 does not require that users should have strong passwords by default, which makes it easier for attackers to compromise user accounts. IBM X-Force ID: 137772.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2018-1372"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-521"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-02-27T17:29:00Z",
    "severity": "CRITICAL"
  },
  "details": "IBM Security Guardium Big Data Intelligence (SonarG) 3.1 does not require that users should have strong passwords by default, which makes it easier for attackers to compromise user accounts. IBM X-Force ID: 137772.",
  "id": "GHSA-q47w-2gm2-g2h9",
  "modified": "2022-05-13T01:49:48Z",
  "published": "2022-05-13T01:49:48Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-1372"
    },
    {
      "type": "WEB",
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/137772"
    },
    {
      "type": "WEB",
      "url": "http://www.ibm.com/support/docview.wss?uid=swg22013832"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/103237"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-Q4G5-R7JQ-2PCX

Vulnerability from github – Published: 2024-07-02 09:32 – Updated: 2024-07-02 09:32
VLAI
Details

The user management section of the web application permits the creation of user accounts with excessively weak passwords, including single-character passwords.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2023-41923"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-521"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-07-02T08:15:04Z",
    "severity": "HIGH"
  },
  "details": "The user management section of the web application permits the creation of user accounts with excessively weak passwords, including single-character passwords.",
  "id": "GHSA-q4g5-r7jq-2pcx",
  "modified": "2024-07-02T09:32:06Z",
  "published": "2024-07-02T09:32:06Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-41923"
    },
    {
      "type": "WEB",
      "url": "https://advisories.ncsc.nl/advisory?id=NCSC-2024-0273"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-Q7M5-4XHC-7XFR

Vulnerability from github – Published: 2024-03-25 06:30 – Updated: 2025-03-28 09:30
VLAI
Details

HGW BL1500HM Ver 002.001.013 and earlier contains a use of week credentials issue. A network-adjacent unauthenticated attacker may connect to the product via SSH and use a shell.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2024-21865"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1391",
      "CWE-521"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-03-25T05:15:50Z",
    "severity": "MODERATE"
  },
  "details": "HGW BL1500HM Ver 002.001.013 and earlier contains a use of week credentials issue. A network-adjacent unauthenticated attacker may connect to the product via SSH and use a shell.",
  "id": "GHSA-q7m5-4xhc-7xfr",
  "modified": "2025-03-28T09:30:30Z",
  "published": "2024-03-25T06:30:24Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-21865"
    },
    {
      "type": "WEB",
      "url": "https://jvn.jp/en/vu/JVNVU93546510"
    },
    {
      "type": "WEB",
      "url": "https://kddi-tech.com/contents/appendix_L2_06.html#20304f4c-af1b-49fd-c3b5-8d1f55fd8b4f"
    },
    {
      "type": "WEB",
      "url": "https://www.au.com/support/service/internet/guide/modem/bl1500hm/firmware"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-Q8W8-6RFH-2MQ4

Vulnerability from github – Published: 2025-07-26 09:31 – Updated: 2025-07-26 09:31
VLAI
Details

A vulnerability has been found in Tenda AC18 15.03.05.19 and classified as problematic. This vulnerability affects unknown code of the file /etc_ro/smb.conf of the component Samba. The manipulation leads to weak password requirements. The attack can be initiated remotely. The complexity of an attack is rather high. The exploitation appears to be difficult. The exploit has been disclosed to the public and may be used.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2025-8182"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-521"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-07-26T09:15:26Z",
    "severity": "MODERATE"
  },
  "details": "A vulnerability has been found in Tenda AC18 15.03.05.19 and classified as problematic. This vulnerability affects unknown code of the file /etc_ro/smb.conf of the component Samba. The manipulation leads to weak password requirements. The attack can be initiated remotely. The complexity of an attack is rather high. The exploitation appears to be difficult. The exploit has been disclosed to the public and may be used.",
  "id": "GHSA-q8w8-6rfh-2mq4",
  "modified": "2025-07-26T09:31:57Z",
  "published": "2025-07-26T09:31:57Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-8182"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?ctiid.317596"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?id.317596"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?submit.621977"
    },
    {
      "type": "WEB",
      "url": "https://www.notion.so/23a54a1113e7802abfabf1275a555f48"
    },
    {
      "type": "WEB",
      "url": "https://www.tenda.com.cn"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

Mitigation
Architecture and Design
  • A product's design should require adherance to an appropriate password policy. Specific password requirements depend strongly on contextual factors, but it is recommended to contain the following attributes:
  • Depending on the threat model, the password policy may include several additional attributes.
  • See NIST 800-63B [REF-1053] for further information on password requirements.
  • {'xhtml:li': ['Enforcement of a minimum and maximum length', 'Restrictions against password reuse', 'Restrictions against using common passwords', 'Restrictions against using contextual string in the password (e.g., user id, app name)']}
  • {'xhtml:li': [{'xhtml:ul': {'xhtml:li': ['Increasing the range of characters makes the password harder to crack and may be appropriate for systems relying on single factor authentication.', 'Unfortunately, a complex password may be difficult to memorize, encouraging a user to select a short password or to incorrectly manage the password (write it down).', "Another disadvantage of this approach is that it often does not result in a significant increases in overal password complexity due to people's predictable usage of various symbols."]}, '#text': 'Complex passwords requiring mixed character sets (alpha, numeric, special, mixed case)'}, {'xhtml:ul': {'xhtml:li': ['Increasing the number of characters makes the password harder to crack and may be appropriate for systems relying on single factor authentication.', 'A disadvantage of this approach is that selecting a good passphrase is not easy and poor passwords can still be generated. Some prompting may be needed to encourage long un-predictable passwords.']}, '#text': 'Large Minimum Length (encouraging passphrases instead of passwords)'}, {'xhtml:ul': {'xhtml:li': ['Generating a password for the user can help make sure that length and complexity requirements are met, and can result in secure passwords being used.', 'A disadvantage of this approach is that the resulting password or passpharse may be too difficult to memorize, encouraging them to be written down.']}, '#text': 'Randomly Chosen Secrets'}]}
Mitigation
Architecture and Design

Consider a second authentication factor beyond the password, which prevents the password from being a single point of failure. See CWE-308 for further information.

Mitigation
Implementation

Consider implementing a password complexity meter to inform users when a chosen password meets the required attributes.

Mitigation
Implementation

Previously, "password expiration" was widely advocated as a defense-in-depth approach to minimize the risk of weak passwords, and it has become a common practice. Password expiration requires a password to be changed within a fixed time window (such as every 90 days). However, this approach has significant limitations in the current threat landscape, and its utility has been reduced in light of the adoption of related protection mechanisms (such as password complexity and computational effort), along with the recognition that regular password changes often caused users to generate more predictable passwords. As a result, this is now a Discouraged Common Practice [REF-1488] [REF-1489], especially as the sole factor in protecting passwords. It is still strongly encouraged to force password changes in case of evidence of compromise, but this is not the same as a forced "expiration" on an arbitrary time frame.

CAPEC-112: Brute Force

In this attack, some asset (information, functionality, identity, etc.) is protected by a finite secret value. The attacker attempts to gain access to this asset by using trial-and-error to exhaustively explore all the possible secret values in the hope of finding the secret (or a value that is functionally equivalent) that will unlock the asset.

CAPEC-16: Dictionary-based Password Attack

An attacker tries each of the words in a dictionary as passwords to gain access to the system via some user's account. If the password chosen by the user was a word within the dictionary, this attack will be successful (in the absence of other mitigations). This is a specific instance of the password brute forcing attack pattern.

Dictionary Attacks differ from similar attacks such as Password Spraying (CAPEC-565) and Credential Stuffing (CAPEC-600), since they leverage unknown username/password combinations and don't care about inducing account lockouts.

CAPEC-49: Password Brute Forcing

An adversary tries every possible value for a password until they succeed. A brute force attack, if feasible computationally, will always be successful because it will essentially go through all possible passwords given the alphabet used (lower case letters, upper case letters, numbers, symbols, etc.) and the maximum length of the password.

CAPEC-509: Kerberoasting

Through the exploitation of how service accounts leverage Kerberos authentication with Service Principal Names (SPNs), the adversary obtains and subsequently cracks the hashed credentials of a service account target to exploit its privileges. The Kerberos authentication protocol centers around a ticketing system which is used to request/grant access to services and to then access the requested services. As an authenticated user, the adversary may request Active Directory and obtain a service ticket with portions encrypted via RC4 with the private key of the authenticated account. By extracting the local ticket and saving it disk, the adversary can brute force the hashed value to reveal the target account credentials.

CAPEC-55: Rainbow Table Password Cracking

An attacker gets access to the database table where hashes of passwords are stored. They then use a rainbow table of pre-computed hash chains to attempt to look up the original password. Once the original password corresponding to the hash is obtained, the attacker uses the original password to gain access to the system.

CAPEC-555: Remote Services with Stolen Credentials

This pattern of attack involves an adversary that uses stolen credentials to leverage remote services such as RDP, telnet, SSH, and VNC to log into a system. Once access is gained, any number of malicious activities could be performed.

CAPEC-561: Windows Admin Shares with Stolen Credentials

An adversary guesses or obtains (i.e. steals or purchases) legitimate Windows administrator credentials (e.g. userID/password) to access Windows Admin Shares on a local machine or within a Windows domain.

CAPEC-565: Password Spraying

In a Password Spraying attack, an adversary tries a small list (e.g. 3-5) of common or expected passwords, often matching the target's complexity policy, against a known list of user accounts to gain valid credentials. The adversary tries a particular password for each user account, before moving onto the next password in the list. This approach assists the adversary in remaining undetected by avoiding rapid or frequent account lockouts. The adversary may then reattempt the process with additional passwords, once enough time has passed to prevent inducing a lockout.

CAPEC-70: Try Common or Default Usernames and Passwords

An adversary may try certain common or default usernames and passwords to gain access into the system and perform unauthorized actions. An adversary may try an intelligent brute force using empty passwords, known vendor default credentials, as well as a dictionary of common usernames and passwords. Many vendor products come preconfigured with default (and thus well-known) usernames and passwords that should be deleted prior to usage in a production environment. It is a common mistake to forget to remove these default login credentials. Another problem is that users would pick very simple (common) passwords (e.g. "secret" or "password") that make it easier for the attacker to gain access to the system compared to using a brute force attack or even a dictionary attack using a full dictionary.