Vulnerability Details : CVE-2021-41228

TensorFlow is an open source platform for machine learning. In affected versions TensorFlow's `saved_model_cli` tool is vulnerable to a code injection as it calls `eval` on user supplied strings. This can be used by attackers to run arbitrary code on the plaform where the CLI tool runs. However, given that the tool is always run manually, the impact of this is not severe. We have patched this by adding a `safe` flag which defaults to `True` and an explicit warning for users. The fix will be included in TensorFlow 2.7.0. We will also cherrypick this commit on TensorFlow 2.6.1, TensorFlow 2.5.2, and TensorFlow 2.4.4, as these are also affected and still in supported range.

Published 2021-11-05 23:15:09

Updated 2022-10-20 21:25:37

Source GitHub, Inc.

View at NVD, CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2021-41228

Probability of exploitation activity in the next 30 days: 0.07%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 27 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2021-41228

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Source
4.6	MEDIUM	AV:L/AC:L/Au:N/C:P/I:P/A:P	3.9	6.4	nvd@nist.gov
Access Vector: Local Access Complexity: Low Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
7.8	HIGH	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	1.8	5.9	nvd@nist.gov
Attack Vector: Local Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High
7.5	HIGH	CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H	0.8	6.0	security-advisories@github.com
Attack Vector: Local Attack Complexity: High Privileges Required: High User Interaction: None Scope: Changed Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2021-41228

CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.

Assigned by: security-advisories@github.com (Secondary)
CWE-94 Improper Control of Generation of Code ('Code Injection')

The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-41228

https://github.com/tensorflow/tensorflow/security/advisories/GHSA-3rcw-9p9x-582v

Code injection in `saved_model_cli` · Advisory · tensorflow/tensorflow · GitHub
Exploit;Third Party Advisory
https://github.com/tensorflow/tensorflow/commit/8b202f08d52e8206af2bdb2112a62fafbc546ec7

Remove use of `eval` when evaluating the input example. · tensorflow/tensorflow@8b202f0 · GitHub
Patch;Third Party Advisory

CVEs referencing this url

Products affected by CVE-2021-41228

Google » Tensorflow
Versions from including (>=) 2.5.0 and before (<) 2.5.2
cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:*
Matching versions
Google » Tensorflow
Versions from including (>=) 2.4.0 and before (<) 2.4.4
cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:*
Matching versions
Google » Tensorflow
Versions from including (>=) 2.6.0 and before (<) 2.6.1
cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:*
Matching versions
Google » Tensorflow » Version: 2.7.0 Update RC0
cpe:2.3:a:google:tensorflow:2.7.0:rc0:*:*:*:*:*:*
Matching versions
Google » Tensorflow » Version: 2.7.0 Update RC1
cpe:2.3:a:google:tensorflow:2.7.0:rc1:*:*:*:*:*:*
Matching versions