- Description
- ASTEVAL is an evaluator of Python expressions and statements. Prior to version 1.0.6, if an attacker can control the input to the `asteval` library, they can bypass asteval's restrictions and execute arbitrary Python code in the context of the application using the library. The vulnerability is rooted in how `asteval` performs handling of `FormattedValue` AST nodes. In particular, the `on_formattedvalue` value uses the dangerous format method of the str class. The code allows an attacker to manipulate the value of the string used in the dangerous call `fmt.format(__fstring__=val)`. This vulnerability can be exploited to access protected attributes by intentionally triggering an `AttributeError` exception. The attacker can then catch the exception and use its `obj` attribute to gain arbitrary access to sensitive or protected object properties. Version 1.0.6 fixes this issue.
- Source
- security-advisories@github.com
- NVD status
- Received
CVSS 3.1
- Type
- Secondary
- Base score
- 8.4
- Impact score
- 5.9
- Exploitability score
- 2.5
- Vector string
- CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Severity
- HIGH
- security-advisories@github.com
- CWE-134
- Hype score
- Not currently trending
CVE-2025-24359 ASTEVAL is an evaluator of Python expressions and statements. Prior to version 1.0.6, if an attacker can control the input to the `asteval` library, they can bypass a… https://t.co/Wj5GexXjL4
@CVEnew
24 Jan 2025
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[CVE-2025-24359: HIGH] ASTEVAL library addressed a critical vulnerability in versions prior to 1.0.6 that allowed attackers to execute arbitrary Python code by manipulating input through `FormattedValue` AST node...#cybersecurity,#vulnerability https://t.co/yDF5wa7Gsc https://t.c
@CveFindCom
24 Jan 2025
26 Impressions
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1 Like
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