// For flags

CVE-2011-1487

Perl 5.x - 'lc()' / 'uc()' TAINT Mode Protection Security Bypass

Severity Score

5.0
*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

6
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

The (1) lc, (2) lcfirst, (3) uc, and (4) ucfirst functions in Perl 5.10.x, 5.11.x, and 5.12.x through 5.12.3, and 5.13.x through 5.13.11, do not apply the taint attribute to the return value upon processing tainted input, which might allow context-dependent attackers to bypass the taint protection mechanism via a crafted string.

Las funciones (1) lc, (2) lcfirst, (3) uc, y (4) ucfirst en Perl v5.10.x, v5.11.x, y v5.12.x hasta v5.12.3, y v5.13.x hasta v5.13.11, no aplica el atributo taint para devolver el valor sobre el proceso de entrada tainted, lo que puede permitir a atacantes dependientes del contexto evitar el mecanismo de protección de taint a través de una cadena manipulada.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
None
Attack Vector
Network
Attack Complexity
High
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2011-03-21 CVE Reserved
  • 2011-03-30 First Exploit
  • 2011-04-11 CVE Published
  • 2023-04-30 EPSS Updated
  • 2024-08-06 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-264: Permissions, Privileges, and Access Controls
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Perl
Search vendor "Perl"
Perl
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5.10.0
Search vendor "Perl" for product "Perl" and version "5.10.0"
-
Affected
Perl
Search vendor "Perl"
Perl
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5.10.0
Search vendor "Perl" for product "Perl" and version "5.10.0"
rc1
Affected
Perl
Search vendor "Perl"
Perl
Search vendor "Perl" for product "Perl"
5.10.0
Search vendor "Perl" for product "Perl" and version "5.10.0"
rc2
Affected
Perl
Search vendor "Perl"
Perl
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5.10.1
Search vendor "Perl" for product "Perl" and version "5.10.1"
-
Affected
Perl
Search vendor "Perl"
Perl
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5.10.1
Search vendor "Perl" for product "Perl" and version "5.10.1"
rc1
Affected
Perl
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Perl
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5.10.1
Search vendor "Perl" for product "Perl" and version "5.10.1"
rc2
Affected
Perl
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Perl
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5.13.0
Search vendor "Perl" for product "Perl" and version "5.13.0"
-
Affected
Perl
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Perl
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5.13.1
Search vendor "Perl" for product "Perl" and version "5.13.1"
-
Affected
Perl
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Perl
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5.13.2
Search vendor "Perl" for product "Perl" and version "5.13.2"
-
Affected
Perl
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Perl
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5.13.3
Search vendor "Perl" for product "Perl" and version "5.13.3"
-
Affected
Perl
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Perl
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5.13.4
Search vendor "Perl" for product "Perl" and version "5.13.4"
-
Affected
Perl
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Perl
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5.13.5
Search vendor "Perl" for product "Perl" and version "5.13.5"
-
Affected
Perl
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Perl
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5.13.6
Search vendor "Perl" for product "Perl" and version "5.13.6"
-
Affected
Perl
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Perl
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5.13.7
Search vendor "Perl" for product "Perl" and version "5.13.7"
-
Affected
Perl
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Perl
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5.13.8
Search vendor "Perl" for product "Perl" and version "5.13.8"
-
Affected
Perl
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Perl
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5.13.9
Search vendor "Perl" for product "Perl" and version "5.13.9"
-
Affected
Perl
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Perl
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5.13.10
Search vendor "Perl" for product "Perl" and version "5.13.10"
-
Affected
Perl
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Perl
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5.13.11
Search vendor "Perl" for product "Perl" and version "5.13.11"
-
Affected
Perl
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Perl
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5.11.0
Search vendor "Perl" for product "Perl" and version "5.11.0"
-
Affected
Perl
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Perl
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5.11.1
Search vendor "Perl" for product "Perl" and version "5.11.1"
-
Affected
Perl
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Perl
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5.11.2
Search vendor "Perl" for product "Perl" and version "5.11.2"
-
Affected
Perl
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Perl
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5.11.3
Search vendor "Perl" for product "Perl" and version "5.11.3"
-
Affected
Perl
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Perl
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5.11.4
Search vendor "Perl" for product "Perl" and version "5.11.4"
-
Affected
Perl
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Perl
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5.11.5
Search vendor "Perl" for product "Perl" and version "5.11.5"
-
Affected
Perl
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Perl
Search vendor "Perl" for product "Perl"
5.12.0
Search vendor "Perl" for product "Perl" and version "5.12.0"
-
Affected
Perl
Search vendor "Perl"
Perl
Search vendor "Perl" for product "Perl"
5.12.0
Search vendor "Perl" for product "Perl" and version "5.12.0"
rc0
Affected
Perl
Search vendor "Perl"
Perl
Search vendor "Perl" for product "Perl"
5.12.0
Search vendor "Perl" for product "Perl" and version "5.12.0"
rc1
Affected
Perl
Search vendor "Perl"
Perl
Search vendor "Perl" for product "Perl"
5.12.0
Search vendor "Perl" for product "Perl" and version "5.12.0"
rc2
Affected
Perl
Search vendor "Perl"
Perl
Search vendor "Perl" for product "Perl"
5.12.0
Search vendor "Perl" for product "Perl" and version "5.12.0"
rc3
Affected
Perl
Search vendor "Perl"
Perl
Search vendor "Perl" for product "Perl"
5.12.0
Search vendor "Perl" for product "Perl" and version "5.12.0"
rc4
Affected
Perl
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Perl
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5.12.0
Search vendor "Perl" for product "Perl" and version "5.12.0"
rc5
Affected
Perl
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Perl
Search vendor "Perl" for product "Perl"
5.12.1
Search vendor "Perl" for product "Perl" and version "5.12.1"
-
Affected
Perl
Search vendor "Perl"
Perl
Search vendor "Perl" for product "Perl"
5.12.1
Search vendor "Perl" for product "Perl" and version "5.12.1"
rc1
Affected
Perl
Search vendor "Perl"
Perl
Search vendor "Perl" for product "Perl"
5.12.1
Search vendor "Perl" for product "Perl" and version "5.12.1"
rc2
Affected
Perl
Search vendor "Perl"
Perl
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5.12.2
Search vendor "Perl" for product "Perl" and version "5.12.2"
-
Affected
Perl
Search vendor "Perl"
Perl
Search vendor "Perl" for product "Perl"
5.12.2
Search vendor "Perl" for product "Perl" and version "5.12.2"
rc1
Affected
Perl
Search vendor "Perl"
Perl
Search vendor "Perl" for product "Perl"
5.12.3
Search vendor "Perl" for product "Perl" and version "5.12.3"
-
Affected
Perl
Search vendor "Perl"
Perl
Search vendor "Perl" for product "Perl"
5.12.3
Search vendor "Perl" for product "Perl" and version "5.12.3"
rc1
Affected
Perl
Search vendor "Perl"
Perl
Search vendor "Perl" for product "Perl"
5.12.3
Search vendor "Perl" for product "Perl" and version "5.12.3"
rc2
Affected
Perl
Search vendor "Perl"
Perl
Search vendor "Perl" for product "Perl"
5.12.3
Search vendor "Perl" for product "Perl" and version "5.12.3"
rc3
Affected