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CVE-2021-29445

Padding Oracle Attack due to Observable Timing Discrepancy in jose-node-esm-runtime

jose-node-esm-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`.

CVSS 3.1 · 5.9 Medium EPSS 1.1% KEV · Not listed
CVE-2021-29444

Padding Oracle Attack due to Observable Timing Discrepancy in jose-browser-runtime

jose-browser-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`.

CVSS 3.1 · 5.9 Medium EPSS 1.1% KEV · Not listed
CVE-2021-29443

Padding Oracle Attack due to Observable Timing Discrepancy in jose

jose is an npm library providing a number of cryptographic operations. In vulnerable versions 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. 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). All major release versions have had a patch released which ensures the HMAC tag is verified before performing CBC decryption. The fixed versions are `^1.28.1 || ^2.0.5 || >=3.11.4`. Users should upgrade their v1.x dependency to ^1.28.1, their v2.x dependency to ^2.0.5, and their v3.x dependency to ^3.11.4. Thanks to Jason from Microsoft Vulnerability Research (MSVR) for bringing this up and Eva Sarafianou (@esarafianou) for helping to score this advisory.

CVSS 3.1 · 5.9 Medium EPSS 1.2% KEV · Not listed
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CVE-2021-29415

The elliptic curve cryptography (ECC) hardware accelerator, part of the ARM® TrustZone® CryptoCell 310, contained in the NordicSemiconductor nRF52840 through 2021-03-29 has a non-constant time ECDSA implemenation. This allows an adversary to recover the private ECC key used during an ECDSA operation.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
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CVE-2021-27583

In Directus 8.x through 8.8.1, an attacker can discover whether a user is present in the database through the password reset feature. NOTE: This vulnerability only affects products that are no longer supported by the maintainer

CVSS 3.1 · 5.3 Medium EPSS 1.1% KEV · Not listed
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CVE-2021-27342

An authentication brute-force protection mechanism bypass in telnetd in D-Link Router model DIR-842 firmware version 3.0.2 allows a remote attacker to circumvent the anti-brute-force cool-down delay period via a timing-based side-channel attack

CVSS 3.1 · 5.9 Medium EPSS 4.6% KEV · Not listed
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CVE-2021-26318

Side-channels Related to the x86 PREFETCH Instruction

A timing and power-based side channel attack leveraging the x86 PREFETCH instructions on some AMD CPUs could potentially result in leaked kernel address space information.

CVSS 3.1 · 4.7 Medium EPSS < 1% KEV · Not listed
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Amd
Products
CVE-2021-26314

AMD Speculative execution with Floating-Point Value Injection

Potential floating point value injection in all supported CPU products, in conjunction with software vulnerabilities relating to speculative execution with incorrect floating point results, may cause the use of incorrect data from FPVI and may result in data leakage.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
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Amd Arm Broadcom and 3 more
CVE-2021-26313

AMD Speculative Code Store Bypass

Potential speculative code store bypass in all supported CPU products, in conjunction with software vulnerabilities relating to speculative execution of overwritten instructions, may cause an incorrect speculation and could result in data leakage.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
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Amd Arm Broadcom and 3 more
CVE-2021-24651

Poll Maker < 3.4.2 - Unauthenticated Time Based SQL Injection

The Poll Maker WordPress plugin before 3.4.2 allows unauthenticated users to perform SQL injection via the ays_finish_poll AJAX action. While the result is not disclosed in the response, it is possible to use a timing attack to exfiltrate data such as password hash.

CVSS 3.1 · 7.5 High EPSS 1.6% KEV · Not listed
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CVE-2021-24117

In Apache Teaclave Rust SGX SDK 1.1.3, a side-channel vulnerability in base64 PEM file decoding allows system-level (administrator) attackers to obtain information about secret RSA keys via a controlled-channel and side-channel attack on software running in isolated environments that can be single stepped, especially Intel SGX.

CVSS 3.1 · 4.9 Medium EPSS 2.2% KEV · Not listed
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CVE-2021-24116

In wolfSSL through 4.6.0, a side-channel vulnerability in base64 PEM file decoding allows system-level (administrator) attackers to obtain information about secret RSA keys via a controlled-channel and side-channel attack on software running in isolated environments that can be single stepped, especially Intel SGX.

CVSS 3.1 · 4.9 Medium EPSS 1.2% KEV · Not listed
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CVE-2021-23239

sudo: possible directory existence test due to race condition in sudoedit

The sudoedit personality of Sudo before 1.9.5 may allow a local unprivileged user to perform arbitrary directory-existence tests by winning a sudo_edit.c race condition in replacing a user-controlled directory by a symlink to an arbitrary path.

CVSS 3.1 · 2.5 Low EPSS 1.0% KEV · Not listed
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Products
CVE-2021-22892

An information disclosure vulnerability exists in the Rocket.Chat server fixed v3.13, v3.12.2 & v3.11.3 that allowed email addresses to be disclosed by enumeration and validation checks.

CVSS 3.1 · 7.5 High EPSS 1.9% KEV · Not listed
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Products
CVE-2021-21424

Prevent user enumeration using Guard or the new Authenticator-based Security

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. The ability to enumerate users was possible without relevant permissions due to different handling depending on whether the user existed or not when attempting to use the switch users functionality. We now ensure that 403s are returned whether the user exists or not if a user cannot switch to a user or if the user does not exist. The patch for this issue is available for branch 3.4.

CVSS 3.1 · 5.3 Medium EPSS 1.6% KEV · Not listed
Products
CVE-2021-21181

Side-channel information leakage in autofill in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page.

CVSS 3.1 · 6.5 Medium EPSS 1.6% KEV · Not listed
CVE-2021-20376

IBM Sterling File Gateway 2.2.0.0 through 6.1.1.0 could allow an authenticated attacker to enumerate usernames due to there being an observable discrepancy in returned messages. IBM X-Force ID: 195568.

CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Vendors
Ibm
CVE-2021-20147

ManageEngine ADSelfService Plus below build 6116 contains an observable response discrepancy in the UMCP operation of the ChangePasswordAPI. This allows an unauthenticated remote attacker to determine whether a Windows domain user exists.

CVSS 3.1 · 5.3 Medium EPSS 7.1% KEV · Not listed
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