CVE-2011-1487 : Detail

CVE-2011-1487

A01-Broken Access Control
5.59%V4
Network
2011-04-11
16h00 +00:00
2017-08-16
12h57 +00:00
CVE.org
NVD
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CVE 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.

CVE Informations

Related Weaknesses

CWE-ID Weakness Name Source
CWE-264 Category : Permissions, Privileges, and Access Controls
Weaknesses in this category are related to the management of permissions, privileges, and other security features that are used to perform access control.

Metrics

Metrics Score Severity CVSS Vector Source
V2 5 AV:N/AC:L/Au:N/C:N/I:P/A:N nvd@nist.gov

EPSS

EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.

EPSS Score

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

EPSS Percentile

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.
EPSS First.org

Exploit information

Exploit Database EDB-ID : 35554

Publication date : 2011-03-29 22h00 +00:00
Author : mmartinec
EDB Verified : Yes

source: https://www.securityfocus.com/bid/47124/info Perl is prone to a security-bypass weakness that occurs when laundering tainted input. Attackers can leverage this issue to bypass security checks in perl applications that rely on TAINT mode protection functionality. This opens such applications up to potential attacks that take advantage of the software's failure to properly sanitize user-supplied input. The following example input is available: > perl -Te 'use Scalar::Util qw(tainted); $t=$0; $u=lc($t); printf("%d,%d\n",tainted($t),tainted($u))' > perl -Te 'use Scalar::Util qw(tainted); $t=$0; $u=lc($t); printf("%d,%d\n",tainted($t),tainted($u))'

Products Mentioned

Configuraton 0

Perl>>Perl >> Version 5.10.0

Perl>>Perl >> Version 5.10.0

Perl>>Perl >> Version 5.10.0

Perl>>Perl >> Version 5.10.1

Perl>>Perl >> Version 5.10.1

Perl>>Perl >> Version 5.10.1

Configuraton 0

Perl>>Perl >> Version 5.13.0

Perl>>Perl >> Version 5.13.1

Perl>>Perl >> Version 5.13.2

Perl>>Perl >> Version 5.13.3

Perl>>Perl >> Version 5.13.4

Perl>>Perl >> Version 5.13.5

Perl>>Perl >> Version 5.13.6

Perl>>Perl >> Version 5.13.7

Perl>>Perl >> Version 5.13.8

Perl>>Perl >> Version 5.13.9

Perl>>Perl >> Version 5.13.10

Perl>>Perl >> Version 5.13.11

Configuraton 0

Perl>>Perl >> Version 5.11.0

Perl>>Perl >> Version 5.11.1

Perl>>Perl >> Version 5.11.2

Perl>>Perl >> Version 5.11.3

Perl>>Perl >> Version 5.11.4

Perl>>Perl >> Version 5.11.5

Configuraton 0

Perl>>Perl >> Version 5.12.0

Perl>>Perl >> Version 5.12.0

Perl>>Perl >> Version 5.12.0

Perl>>Perl >> Version 5.12.0

Perl>>Perl >> Version 5.12.0

Perl>>Perl >> Version 5.12.0

Perl>>Perl >> Version 5.12.0

Perl>>Perl >> Version 5.12.1

Perl>>Perl >> Version 5.12.1

Perl>>Perl >> Version 5.12.1

Perl>>Perl >> Version 5.12.2

Perl>>Perl >> Version 5.12.2

Perl>>Perl >> Version 5.12.3

Perl>>Perl >> Version 5.12.3

Perl>>Perl >> Version 5.12.3

Perl>>Perl >> Version 5.12.3

References

http://secunia.com/advisories/44168
Tags : third-party-advisory, x_refsource_SECUNIA
http://secunia.com/advisories/43921
Tags : third-party-advisory, x_refsource_SECUNIA
http://www.debian.org/security/2011/dsa-2265
Tags : vendor-advisory, x_refsource_DEBIAN
http://www.securityfocus.com/bid/47124
Tags : vdb-entry, x_refsource_BID
http://openwall.com/lists/oss-security/2011/04/04/35
Tags : mailing-list, x_refsource_MLIST
http://www.mandriva.com/security/advisories?name=MDVSA-2011:091
Tags : vendor-advisory, x_refsource_MANDRIVA
http://openwall.com/lists/oss-security/2011/04/01/3
Tags : mailing-list, x_refsource_MLIST
The information presented on CVE Find originates from several carefully selected reference sources. CVE data is provided by MITRE Corporation and the National Vulnerability Database (NVD). The Known Exploited Vulnerabilities (KEV) catalog is sourced from the Cybersecurity and Infrastructure Security Agency (CISA), while EPSS scores come from FIRST.org. Additionally, data regarding software weaknesses (CWE) and common attack patterns (CAPEC) is maintained by MITRE Corporation, and information on hardware and software configurations (CPE) is provided by the NVD.