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cveGitHub_MCVE-2021-29446
HistoryApr 16, 2021 - 10:15 p.m.

CVE-2021-29446

2021-04-1622:15:14
CWE-203
GitHub_M
web.nvd.nist.gov
71
7
cve-2021-29446
npm package
cryptographic functions
padding oracle attack
upgrade
security patch

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:N/A:N

CVSS3

5.9

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

AI Score

5.6

Confidence

High

EPSS

0.001

Percentile

51.2%

JSON

jose-node-cjs-runtime is an npm package which provides a number of cryptographic functions. In versions prior to 3.11.4 the AES_CBC_HMAC_SHA2 Algorithm (A128CBC-HS256, A192CBC-HS384, A256CBC-HS512) decryption would always execute both HMAC tag verification and CBC decryption, if either failed JWEDecryptionFailed would be thrown. But a possibly observable difference in timing when padding error would occur while decrypting the ciphertext makes a padding oracle and an adversary might be able to make use of that oracle to 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). A patch was released which ensures the HMAC tag is verified before performing CBC decryption. The fixed versions are >=3.11.4. Users should upgrade to ^3.11.4.

Affected configurations

Nvd
Vulners
Node
jose-node-cjs-runtime_projectjose-node-cjs-runtimeRange<3.11.4node.js
VendorProductVersionCPE
jose-node-cjs-runtime_projectjose-node-cjs-runtime*cpe:2.3:a:jose-node-cjs-runtime_project:jose-node-cjs-runtime:*:*:*:*:*:node.js:*:*

CNA Affected

[
  {
    "product": "jose-node-cjs-runtime",
    "vendor": "panva",
    "versions": [
      {
        "status": "affected",
        "version": "< 3.11.4"
      }
    ]
  }
]

Social References

More

Related

github 1
osv 2
veracode 1
cvelist 1
prion 1
nvd 1
ibm 2
github
github
Padding Oracle Attack due to Observable Timing Discrepancy in jose-node-cjs-runtime
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CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:N/A:N

CVSS3

5.9

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

AI Score

5.6

Confidence

High

EPSS

0.001

Percentile

51.2%

JSON
Related for CVE-2021-29446
github1osv2veracode1cvelist1prion1nvd1ibm2