CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:P/A:N
EPSS
Percentile
65.9%
Issue Overview:
The Server.verify_request function in SimpleGeo python-oauth2 does not check the nonce, which allows remote attackers to perform replay attacks via a signed URL.
The (1) make_nonce, (2) generate_nonce, and (3) generate_verifier functions in SimpleGeo python-oauth2 uses weak random numbers to generate nonces, which makes it easier for remote attackers to guess the nonce via a brute force attack.
Affected Packages:
python-oauth2
Issue Correction:
Run yum update python-oauth2 to update your system.
New Packages:
noarch:
python-oauth2-1.5.211-7.1.amzn1.noarch
src:
python-oauth2-1.5.211-7.1.amzn1.src
Red Hat: CVE-2013-4346, CVE-2013-4347
Mitre: CVE-2013-4346, CVE-2013-4347
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Amazon Linux | 1 | noarch | python-oauth2 | < 1.5.211-7.1.amzn1 | python-oauth2-1.5.211-7.1.amzn1.noarch.rpm |