CWE-347

Improper Verification of Cryptographic Signature

The product does not verify, or incorrectly verifies, the cryptographic signature for data.

CVE-2021-21239 (GCVE-0-2021-21239)

Vulnerability from cvelistv5 – Published: 2021-01-21 14:15 – Updated: 2024-08-03 18:09
VLAI
Title
Open default xmlsec1 key-type preference
Summary
PySAML2 is a pure python implementation of SAML Version 2 Standard. PySAML2 before 6.5.0 has an improper verification of cryptographic signature vulnerability. Users of pysaml2 that use the default CryptoBackendXmlSec1 backend and need to verify signed SAML documents are impacted. PySAML2 does not ensure that a signed SAML document is correctly signed. The default CryptoBackendXmlSec1 backend is using the xmlsec1 binary to verify the signature of signed SAML documents, but by default xmlsec1 accepts any type of key found within the given document. xmlsec1 needs to be configured explicitly to only use only _x509 certificates_ for the verification process of the SAML document signature. This is fixed in PySAML2 6.5.0.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
CWE
  • CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
Impacted products
Vendor Product Version
IdentityPython pysaml2 Affected: < 6.5.0
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Show details on NVD website
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CVE-2021-21405 (GCVE-0-2021-21405)

Vulnerability from cvelistv5 – Published: 2021-04-15 21:35 – Updated: 2024-08-03 18:09
VLAI
Title
BLS Signature "Malleability"
Summary
Lotus is an Implementation of the Filecoin protocol written in Go. BLS signature validation in lotus uses blst library method VerifyCompressed. This method accepts signatures in 2 forms: "serialized", and "compressed", meaning that BLS signatures can be provided as either of 2 unique byte arrays. Lotus block validation functions perform a uniqueness check on provided blocks. Two blocks are considered distinct if the CIDs of their blockheader do not match. The CID method for blockheader includes the BlockSig of the block. The result of these issues is that it would be possible to punish miners for valid blocks, as there are two different valid block CIDs available for each block, even though this must be unique. By switching from the go based `blst` bindings over to the bindings in `filecoin-ffi`, the code paths now ensure that all signatures are compressed by size and the way they are deserialized. This happened in https://github.com/filecoin-project/lotus/pull/5393.
Severity
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
CWE
  • CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
Impacted products
Vendor Product Version
filecoin-project lotus Affected: < 1.5.0
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2021-22573 (GCVE-0-2021-22573)

Vulnerability from cvelistv5 – Published: 2022-05-03 15:45 – Updated: 2025-04-21 13:54
VLAI
Title
Incorrect signature verification on Google-oauth-java-client
Summary
The vulnerability is that IDToken verifier does not verify if token is properly signed. Signature verification makes sure that the token's payload comes from valid provider, not from someone else. An attacker can provide a compromised token with custom payload. The token will pass the validation on the client side. We recommend upgrading to version 1.33.3 or above
Severity
8.7 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
CWE
  • CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
Impacted products
Vendor Product Version
Google LLC Google-oauth-java-client Affected: unspecified , < 1.33.2 (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2021-22708 (GCVE-0-2021-22708)

Vulnerability from cvelistv5 – Published: 2021-07-21 10:41 – Updated: 2024-08-03 18:51
VLAI
Summary
A CWE-347: Improper Verification of Cryptographic Signature vulnerability exists in EVlink City (EVC1S22P4 / EVC1S7P4 all versions prior to R8 V3.4.0.1), EVlink Parking (EVW2 / EVF2 / EV.2 all versions prior to R8 V3.4.0.1), and EVlink Smart Wallbox (EVB1A all versions prior to R8 V3.4.0.1 ) that could allow an attacker to craft a malicious firmware package and bypass the signature verification mechanism.
Severity
No CVSS data available.
CWE
  • CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
Impacted products
Vendor Product Version
n/a EVlink City (EVC1S22P4 / EVC1S7P4 all versions prior to R8 V3.4.0.1), EVlink Parking (EVW2 / EVF2 / EV.2 all versions prior to R8 V3.4.0.1), and EVlink Smart Wallbox (EVB1A all versions prior to R8 V3.4.0.1 ) Affected: EVlink City (EVC1S22P4 / EVC1S7P4 all versions prior to R8 V3.4.0.1), EVlink Parking (EVW2 / EVF2 / EV.2 all versions prior to R8 V3.4.0.1), and EVlink Smart Wallbox (EVB1A all versions prior to R8 V3.4.0.1 )
Show details on NVD website
To clipboard 

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CVE-2021-22734 (GCVE-0-2021-22734)

Vulnerability from cvelistv5 – Published: 2021-05-26 19:19 – Updated: 2024-08-03 18:51
VLAI
Summary
Improper Verification of Cryptographic Signature vulnerability exists in homeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior which could cause remote code execution when an attacker loads unauthorized code.
Severity
No CVSS data available.
CWE
  • CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
Impacted products
Vendor Product Version
n/a homeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior Affected: homeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior
Show details on NVD website
To clipboard 

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CVE-2021-22735 (GCVE-0-2021-22735)

Vulnerability from cvelistv5 – Published: 2021-05-26 19:19 – Updated: 2024-08-03 18:51
VLAI
Summary
Improper Verification of Cryptographic Signature vulnerability exists inhomeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior which could allow remote code execution when unauthorized code is copied to the device.
Severity
No CVSS data available.
CWE
  • CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
Impacted products
Vendor Product Version
n/a homeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior Affected: homeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior
Show details on NVD website
To clipboard 

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CVE-2021-25636 (GCVE-0-2021-25636)

Vulnerability from cvelistv5 – Published: 2022-02-22 00:00 – Updated: 2024-08-03 20:11
VLAI
Title
Incorrect trust validation of signature with ambiguous KeyInfo children
Summary
LibreOffice supports digital signatures of ODF documents and macros within documents, presenting visual aids that no alteration of the document occurred since the last signing and that the signature is valid. An Improper Certificate Validation vulnerability in LibreOffice allowed an attacker to create a digitally signed ODF document, by manipulating the documentsignatures.xml or macrosignatures.xml stream within the document to contain both "X509Data" and "KeyValue" children of the "KeyInfo" tag, which when opened caused LibreOffice to verify using the "KeyValue" but to report verification with the unrelated "X509Data" value. This issue affects: The Document Foundation LibreOffice 7.2 versions prior to 7.2.5.
Severity
No CVSS data available.
CWE
  • CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
Impacted products
Vendor Product Version
The Document Foundation LibreOffice Affected: 7.2 , < 7.2.5 (custom)
Create a notification for this product.
Credits
Thanks to NDS of Ruhr University Bochum for discovering and reporting this problem.
Show details on NVD website
To clipboard 

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CVE-2021-29108 (GCVE-0-2021-29108)

Vulnerability from cvelistv5 – Published: 2021-10-01 14:41 – Updated: 2025-04-10 14:59
VLAI
Title
There is an privilege escalation vulnerability in organization-specific logins in Esri Portal for ArcGIS versions 10.9 and below.
Summary
There is an privilege escalation vulnerability in organization-specific logins in Esri Portal for ArcGIS versions 10.9 and below that may allow a remote, authenticated attacker who is able to intercept and modify a SAML assertion to impersonate another account (XML Signature Wrapping Attack). In addition patching, Esri also strongly recommends as best practice for SAML assertions to be signed and encrypted.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
Impacted products
Vendor Product Version
Esri Portal for ArcGIS Affected: 10.9.0 , < <10.9.0 (10.9.0)
Create a notification for this product.
Date Public
2021-07-15 14:09
Show details on NVD website
To clipboard 

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CVE-2021-29451 (GCVE-0-2021-29451)

Vulnerability from cvelistv5 – Published: 2021-04-16 21:40 – Updated: 2024-08-03 22:02
VLAI
Title
Missing validation of JWT signature in `ManyDesigns/Portofino`
Summary
Portofino is an open source web development framework. Portofino before version 5.2.1 did not properly verify the signature of JSON Web Tokens. This allows forging a valid JWT. The issue will be patched in the upcoming 5.2.1 release.
Severity
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CWE
  • CWE-347 - {"CWE-347":"Improper Verification of Cryptographic Signature"}
Assigner
References
Impacted products
Vendor Product Version
ManyDesigns Portofino Affected: >= 5.0.0, < 5.2.1
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2021-29455 (GCVE-0-2021-29455)

Vulnerability from cvelistv5 – Published: 2021-04-19 19:05 – Updated: 2024-08-03 22:02
VLAI
Title
Missing validation of JWT signature in `grassrootza/grassroot-platform`
Summary
Grassroot Platform is an application to make it faster, cheaper and easier to persistently organize and mobilize people in low-income communities. Grassroot Platform before master deployment as of 2021-04-16 did not properly verify the signature of JSON Web Tokens when refreshing an existing JWT. This allows to forge a valid JWT. The problem has been patched in version 1.3.1 by deprecating the JWT refresh function, which was an overdue deprecation regardless (the "refresh" flow is no longer used).
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE
  • CWE-347 - {"CWE-347":"Improper Verification of Cryptographic Signature"}
Assigner
References
Impacted products
Show details on NVD website
To clipboard 

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                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "grassrootza"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "Grassroot Platform is an application to make it faster, cheaper and easier to persistently organize and mobilize people in low-income communities. Grassroot Platform before master deployment as of 2021-04-16 did not properly verify the signature of JSON Web Tokens when refreshing an existing JWT. This allows to forge a valid JWT. The problem has been patched in version 1.3.1 by deprecating the JWT refresh function, which was an overdue deprecation regardless (the \"refresh\" flow is no longer used)."
            }
          ]
        },
        "impact": {
          "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "{\"CWE-347\":\"Improper Verification of Cryptographic Signature\"}"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/grassrootza/grassroot-platform/security/advisories/GHSA-f65w-6xw8-6734",
              "refsource": "CONFIRM",
              "url": "https://github.com/grassrootza/grassroot-platform/security/advisories/GHSA-f65w-6xw8-6734"
            },
            {
              "name": "https://github.com/grassrootza/grassroot-platform/",
              "refsource": "MISC",
              "url": "https://github.com/grassrootza/grassroot-platform/"
            },
            {
              "name": "https://github.com/grassrootza/grassroot-platform/commit/a2e6e885f8183a066d938cf909fd813a7af7d67f",
              "refsource": "MISC",
              "url": "https://github.com/grassrootza/grassroot-platform/commit/a2e6e885f8183a066d938cf909fd813a7af7d67f"
            }
          ]
        },
        "source": {
          "advisory": "GHSA-f65w-6xw8-6734",
          "discovery": "UNKNOWN"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2021-29455",
    "datePublished": "2021-04-19T19:05:15.000Z",
    "dateReserved": "2021-03-30T00:00:00.000Z",
    "dateUpdated": "2024-08-03T22:02:51.935Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

No mitigation information available for this CWE.

CAPEC-463: Padding Oracle Crypto Attack

An adversary is able to efficiently decrypt data without knowing the decryption key if a target system leaks data on whether or not a padding error happened while decrypting the ciphertext. A target system that leaks this type of information becomes the padding oracle and an adversary is able to make use of that oracle to efficiently decrypt data without knowing the decryption key by issuing on average 128*b calls to the padding oracle (where b is the number of bytes in the ciphertext block). In addition to performing decryption, an adversary is also able to produce valid ciphertexts (i.e., perform encryption) by using the padding oracle, all without knowing the encryption key.

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.

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